SUMMARY
***
In journalctl I see error posted below. I'm not sure what are the implications, but I'm reporting the bug to let you know.
***


STEPS TO REPRODUCE
1. Every time I start the computer.

OBSERVED RESULT
Error in journalctl

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.26.0
KDE Frameworks Version: 5.99.0
Qt Version: 5.15.6
Kernel Version: 6.0.2-zen1-1-zen (64-bit)
Graphics Platform: Wayland

ADDITIONAL INFORMATION

oct 18 09:26:03 hostname xdg-desktop-portal-kde[1271]: This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb.
oct 18 09:26:03 hostname systemd-coredump[1277]: [🡕] Process 1271 (xdg-desktop-por) of user 975 dumped core.

Module linux-vdso.so.1 with build-id 5676a95bbcf6a7593e26d141a9242f3bdad024ce
Module libuuid.so.1 with build-id 9057a530e6b3b0e71f24602a0039c490c9a0b5a1
Module libxcb-util.so.1 with build-id b1e4c01b388a3bd7a0a9ad384865b61f5f1d4a24
Module libxkbcommon-x11.so.0 with build-id 90654f41d9fe91c74bef6672a8b57ab34418b27a
Module libICE.so.6 with build-id a78252e65631a98d7935f1bca668c2fe1d6bbb53
Module libSM.so.6 with build-id 66cef8ae9a7848679be78dd26fd47e05110d03b5
Module libxcb-xinput.so.0 with build-id 409ee697e2b16243bf1fc6429e672f2359033388
Module libxcb-xkb.so.1 with build-id bad7e1eb65df04a6b2d676a08f68844856edaace
Module libxcb-xinerama.so.0 with build-id 5d2ab2683447d9bb7bcc49c058dfa06bcb65560d
Module libxcb-xfixes.so.0 with build-id e231a68d00ee4cfa12a2c31e755a9e2c1e7be450
Module libxcb-sync.so.1 with build-id 13025f6de23a271636ad321c77eda98801e62e8e
Module libxcb-shape.so.0 with build-id f9aab9846b5e3523bd534f8a845f36a37d42b3fa
Module libxcb-render.so.0 with build-id b1ca498d665807ab0ccdafbe8070853efd058173
Module libxcb-render-util.so.0 with build-id 32609134bf1b73183d07a66f6bd65c94b4542460
Module libxcb-randr.so.0 with build-id c914473ab7592ed5cf5c191200faaac1089c12ad
Module libxcb-shm.so.0 with build-id 828fec4d856e2710e732ea8d92c3f250c807b1c2
Module libxcb-image.so.0 with build-id 0e6feae23e34658646dbd63d11f899c92c5d3c79
Module libxcb-icccm.so.4 with build-id 5eb9288df14c7f50af1e8db26c37e19d78bf0978
Module libX11-xcb.so.1 with build-id f92352eae0a30aea89d11beb22367fa985288925
Module libQt5XcbQpa.so.5 with build-id 42332a3b9985c2cc89f73b24a4bdda8845224331
Module libqxcb.so with build-id 1fdbc58e0182862fe58a8b652b794def082a3ca0
Module libdl.so.2 with build-id 414d1d630bc04818a150b9c73e4493f3395e8869
Module libgmp.so.10 with build-id 26cec2ebe94cc5c4cb99e6988717347222b324fd
Module libhogweed.so.6 with build-id 5c4a99ad0aabe13bd9b517f92ab339436a2bc1f2
Module libnettle.so.8 with build-id 6a26cbe6819abc8c57668f80ca8c8160fd85e29e
Module libunistring.so.2 with build-id 617dbf3d3d6f85d6556a7a036e23845e95490158
Module libidn2.so.0 with build-id b16e7570b102789b13ff77289762dbfe3f8f46bc
Module libbrotlienc.so.1 with build-id 74adbc62e4fbb5da9d37b5aa458471f4130862ff
Module libp11-kit.so.0 with build-id cc372ea3c28c4d3dfc633b4d2e933c8584d2af16
Module libbrotlicommon.so.1 with build-id acfd597a977c8087bb6184383daae2e828a9ce42
Module libgpg-error.so.0 with build-id 470d76ceb1e53cb017f78c08936e9bafaeb4058b
Module libresolv.so.2 with build-id 2e70cfe9f2972fb13487eeefcb10e4afafed6157
Module libkeyutils.so.1 with build-id ac405ddd17be10ce538da3211415ee50c8f8df79
Module libkrb5support.so.0 with build-id 9a22a372b2157fb05da1bad94b92d9617513af81
Module libcom_err.so.2 with build-id 3360a28740ffbbd5a5c0c21d09072445908707e5
Module libk5crypto.so.3 with build-id 47d53a3ea2b172eb3db1be0ae0272c7c045267e8
Module libkrb5.so.3 with build-id 1fc969c1f54103d87e400237751b4804569a2730
Module libpthread.so.0 with build-id 3954d7fd57fa4db438d0ccdd8e2c6f7cc97c2e46
Module libusbmuxd-2.0.so.6 with build-id fd9f05e7f5b0da4e15972f75b61fd9b4b9f06dbe
Module libtasn1.so.6 with build-id fa2f7a5bfbcda1481ab5875d5744730ea1be8fb1
Module libgnutls.so.30 with build-id e849ad24d363553f5ddc88d43926e1ab2601ada9
Module libbrotlidec.so.1 with build-id 66c54e9301f7e102ecc1d88547e5f0e8a056fe22
Module libexpat.so.1 with build-id 52f685635e8711c1164d20a1ef8acd3840312094
Module libogg.so.0 with build-id ca0cae30a809f10db1f16e54a23b4e5ff7b2c54c
Module libvorbis.so.0 with build-id f4e086347f6c1a66eb73cfe13974a29bd39aabca
Module libpcre2-8.so.0 with build-id 917fc43d2c9f8539a3e324555c6c73886e8000a8
Module libicudata.so.71 with build-id 4fef196388e678deb881978139e125e20ee2d94d
Module liblz4.so.1 with build-id 84ea95d811dad359e94e100ebe6a746294ffe8a7
Module libgcrypt.so.20 with build-id 8bf3cb884124273640de797a3e77d86c98434ea4
Module libcap.so.2 with build-id 9b38b08de708f439a9d0a4f8b9914151bc8d4b50
Module libblkid.so.1 with build-id fb2c5d3c17aac74758a3eb80a2bc1c16bcf183b1
Module libgraphite2.so.3 with build-id ce58945ebb55b86d3a4e717b6eae29efc4720d8e
Module libGLX.so.0 with build-id d2c37fb8ec3bc53c67c013b0c6ac63ec086c8883
Module libGLdispatch.so.0 with build-id 7879a881271650eff97c35aff7a8674859c5ae94
Module liblzma.so.5 with build-id 8a7334fec02fef6a82ff641a68b3e3200a44a702
Module libbz2.so.1.0 with build-id 919597c477c9b2cb9cdbb7745ed6494ac0e6da60
Module libXdmcp.so.6 with build-id d864159ab0008415667db8d5f251696d75c90df2
Module libXau.so.6 with build-id d9d5e8277140f1a86d3a07d9b52b1703c0a2f9a8
Module libcrypto.so.1.1 with build-id 7981ea3d69f3c28e46ee312a815af96eab93775c
Module libssl.so.1.1 with build-id e6b1f97a5b60b4248c49dfc5b11f53f281b507d0
Module libgssapi_krb5.so.2 with build-id a10eaeef6e9969e80048d247666a3af155716afc
Module libplist-2.0.so.3 with build-id f16bdd42b3d750ba0a150d286248f5dc50cc76cb
Module libimobiledevice-1.0.so.6 with build-id bc258677480403cc2df4f0efcfc97e06af826ddc
Module libudev.so.1 with build-id 9182f4b98c40aa4dfd7fd1b4ff74fad23b715035
Module libKF5GlobalAccel.so.5 with build-id 58892df8bbd414c674c37405b389d9e38ef904cb
Module libxkbcommon.so.0 with build-id 6cf66eead3fcc20fe5df10162bfbcdcdc8b2a183
Module libfreetype.so.6 with build-id f89dd5502e75aca28fb5c3ccd0dbd26fe822bfef
Module libfontconfig.so.1 with build-id 36be6951b8c1e42a7dd05684a37400fc8ef9147c
Module libwayland-cursor.so.0 with build-id 46a637dbcbb02d6712a201f177377b66598b9121
Module libXext.so.6 with build-id 17beadf1cb40d41ab36629db3b4eed74110678a7
Module libltdl.so.7 with build-id 6a619e7b85ea9702e595881863bc9e599565e8a0
Module libtdb.so.1 with build-id f2bdb5ac97b6addf2026d93b08c8d15defcd9bb8
Module libvorbisfile.so.3 with build-id 45d2551167a616d448beb033ba49394831992887
Module libglib-2.0.so.0 with build-id 3ef8f9239c93af698703b12c5c6738fe0129eaa7
Module libzstd.so.1 with build-id ab54c2881f53ab314e134f3e08c76d504376dd5d
Module libpcre2-16.so.0 with build-id 8ad49680a3f743a5241632a400d0de30aeaa54dd
Module libicuuc.so.71 with build-id 633fdc0c5385d916571f6140e7a978ad0630ef55
Module libicui18n.so.71 with build-id 6fd5c97fd2808ee29958bf809656d5885e7e8963
Module libdouble-conversion.so.3 with build-id 74bfa78f70f9ae1f759f0ae383fbc7f6f7faf6f8
Module libsystemd.so.0 with build-id 9bed700282c6ab3bd115d3816bb234a632e770a5
Module libdbus-1.so.3 with build-id 6d6e4846c8e56903b4fe7d992ae6bb30c8a20a9c
Module libKF5DBusAddons.so.5 with build-id 03abf1c24e5a269ee395ad4099652feafb12be6f
Module libmount.so.1 with build-id 9064fc3620c42e6f7aed38119f0a3ec39fca9a37
Module libacl.so.1 with build-id 27869ed0219ade5d2ffd50eaee11f967187faa8b
Module libKF5AuthCore.so.5 with build-id e8c3961a260b70043d5543749b7ce3bd144709d7
Module libKF5Crash.so.5 with build-id 63a18381ba033fcc9d55aedcd43b520fe04b3ecc
Module libmd4c.so.0 with build-id 2151dba72cdc9960097e6e960a58a2f03c8bb96e
Module libharfbuzz.so.0 with build-id 2d058365c6559e779ba3079192020297aeb36af9
Module libz.so.1 with build-id 5340199d53cb95e609028ce1143675c742ff4218
Module libpng16.so.16 with build-id 14d3b3cc9d61ec1b7c1f86bdf108218a99364945
Module libGL.so.1 with build-id 6f65953140bc8a2aba47c9d492658dc61891393e
Module libQt5QmlModels.so.5 with build-id 75ac4ba2a588a639d18be70e47f2b106930ac1a5
Module libgcc_s.so.1 with build-id 85db482c4585a328d95ec41124337a967bb24d8f
Module libKF5Archive.so.5 with build-id 784b900eebadfb900b9f958788fb5c1f99cec2b8
Module libQt5Svg.so.5 with build-id 7db0284946e4871e7f9effc797f1dee6b7cb1be6
Module libxcb-keysyms.so.1 with build-id 507bdc94868b9b1f9d95e31c492694f2513da88d
Module libxcb.so.1 with build-id 13d677412a71468381b11092915d231f664d18d3
Module ld-linux-x86-64.so.2 with build-id 22bd7a2c03d8cfc05ef7092bfae5932223189bc1
Module libm.so.6 with build-id 2c8ff1d29b255da5b7371efd5caf57444d622838
Module libQt5Xml.so.5 with build-id f67bcabb5df91d3dd74fb54fd53421bcd089b9f4
Module libKF5Codecs.so.5 with build-id 0b578cfe76a2b39f96ba7bc6df0ddd9be7c22ac7
Module libKF5WidgetsAddons.so.5 with build-id a9a32bb7b20a4b655c7b984ec4e7285816386971
Module libKF5GuiAddons.so.5 with build-id 7c2f156ca555f5c7394d873c97c8a007e82ef548
Module libKF5ConfigWidgets.so.5 with build-id 7dc07957cb9e0b1c8b4f94cc4706132aca8a65d9
Module libQt5Network.so.5 with build-id 4ef4fd4a75511783248e62c378fe446cfa4ccc91
Module libKF5Completion.so.5 with build-id 6c0702106cae7afb0e5bbeede714d3d526358fd4
Module libKF5JobWidgets.so.5 with build-id 0c31576fdf79ff7e39ed60db7566fddde770e5e1
Module libKF5Solid.so.5 with build-id 4c3b06e1896b37ac7c92f0fee714d7da425040ba
Module libKF5XmlGui.so.5 with build-id b2b06c04caed2139f99b5de3cb253e3aa0b64dcb
Module libKF5Bookmarks.so.5 with build-id eac2902348e7f3cf50624eee40054c375870ff60
Module libffi.so.8 with build-id fb5dba105458f179a9153659f3ccd8e1056a2f35
Module libQt5WaylandClient.so.5 with build-id 032f7f11d4e8511b03ff65222f387e69913adfbf
Module libdbusmenu-qt5.so.2 with build-id 346cd54093968d3de9e61cc329e9512d248dce18
Module libXtst.so.6 with build-id eaf941ac9100f7854ebc0d512979d2fc6e87d461
Module libQt5X11Extras.so.5 with build-id 78547956b3be2e12eece7fa5e9fa9f161b022c50
Module libX11.so.6 with build-id 21e886e968772b7964d646f54c1faecc56734de9
Module libQt5TextToSpeech.so.5 with build-id 593099f8617753c871f48e5951f368c3a863e1cf
Module libcanberra.so.0 with build-id 8ddef69c9b84a86062c88a59510639cd908fc6d3
Module libc.so.6 with build-id 1e94beb079e278ac4f2c8bce1f53091548ea1584
Module libstdc++.so.6 with build-id 735a3d0cc7699fd69337361cba4aedb644b2a7ed
Module libQt5Core.so.5 with build-id 823925f914e2c683738fe9ae89a05c216ce36597
Module libQt5DBus.so.5 with build-id 80839ec0184277ea0382ce3fdc7f84eaebb4dff9
Module libKF5CoreAddons.so.5 with build-id 62326905c473db19337c7e01e790490ba70df854
Module libKF5I18n.so.5 with build-id 6a91b57f66c86d2b080056c0195cf095311dad9e
Module libKF5ConfigCore.so.5 with build-id dea712f5c33eb84ced0e4dea973e8b687ae94f46
Module libKF5Service.so.5 with build-id 48775fbc4bee84e539074c055290386ec37555a9
Module libKF5KIOCore.so.5 with build-id c1468f75ae5f45203c5abacab49b92a351b781e6
Module libQt5Qml.so.5 with build-id 22231cfcf29a284259109c7862fb6e72406b131a
Module libQt5Gui.so.5 with build-id f8f986e6c7c7ae8751dea9a1bec7ae453b0a8bc2
Module libQt5Quick.so.5 with build-id 7943b27c49d44215357f6219398a7b376dcf4cbd
Module libQt5Widgets.so.5 with build-id fa71e5cc926ad5e5541fafed18d9ec10c2eb70ca
Module libKF5ConfigGui.so.5 with build-id 3f24792ea7987b59d73fbee76297ca00e42f00a0
Module libKF5ItemViews.so.5 with build-id da9ae9155b462b4622737b62445d6a5ee4a4e2f4
Module libQt5PrintSupport.so.5 with build-id ef08ded57d2f7b02b337acd470cc1a12515b2a3d
Module libKF5IconThemes.so.5 with build-id 84a935d8c24609b710db56c9cbc90bbe15b990b0
Module libKF5WindowSystem.so.5 with build-id 8ec18b141cfc9a0ee4ffe9f352fe26c60ffa4fc4
Module libKF5KIOGui.so.5 with build-id 39d267ba908cd0c25c0f29483778f34c34aa477e
Module libKF5KIOWidgets.so.5 with build-id 822db0cc4c0ddebe052b89f6a3a27d5a35a01574
Module libKF5KIOFileWidgets.so.5 with build-id 9ef12b55f79d5a4fcab9247aa680900112b26ac2
Module libwayland-client.so.0 with build-id 515c72111400d7bdbfbdfcec78d597e4986a5943
Module libKF5WaylandClient.so.5 with build-id 302dd5e044cf2504aaaa997d88e3772d644589b1
Module libKF5Notifications.so.5 with build-id 873c11b816ee7117d21e6dcf27f364a62a37c591
Module xdg-desktop-portal-kde with build-id 02e9f2c22df52eb3a89a22e4bac5c4ea8e9826b7
Stack trace of thread 1271:
#0  0x00007ff7e50eb64c n/a (libc.so.6 + 0x8864c)
#1  0x00007ff7e509b958 raise (libc.so.6 + 0x38958)
#2  0x00007ff7e508553d abort (libc.so.6 + 0x2253d)
#3  0x00007ff7e5520ede _ZNK14QMessageLogger5fatalEPKcz (libQt5Core.so.5 + 0x9fede)
#4  0x00007ff7e62b9aa5 _ZN22QGuiApplicationPrivate25createPlatformIntegrationEv (libQt5Gui.so.5 + 0x13caa5)
#5  0x00007ff7e62ba109 _ZN22QGuiApplicationPrivate21createEventDispatcherEv (libQt5Gui.so.5 + 0x13d109)
#6  0x00007ff7e57131ab _ZN23QCoreApplicationPrivate4initEv (libQt5Core.so.5 + 0x2921ab)
#7  0x00007ff7e62ba1b9 _ZN22QGuiApplicationPrivate4initEv (libQt5Gui.so.5 + 0x13d1b9)
#8  0x00007ff7e6e96e0e _ZN19QApplicationPrivate4initEv (libQt5Widgets.so.5 + 0x175e0e)
#9  0x000055787f4b30f6 n/a (xdg-desktop-portal-kde + 0x1f0f6)
#10 0x00007ff7e5086290 n/a (libc.so.6 + 0x23290)
#11 0x00007ff7e508634a __libc_start_main (libc.so.6 + 0x2334a)
#12 0x000055787f4b4565 n/a (xdg-desktop-portal-kde + 0x20565)

Stack trace of thread 1274:
#0  0x00007ff7e515e0bf __poll (libc.so.6 + 0xfb0bf)
#1  0x00007ff7e3a4de2f n/a (libglib-2.0.so.0 + 0xabe2f)
#2  0x00007ff7e39f60d2 g_main_context_iteration (libglib-2.0.so.0 + 0x540d2)
#3  0x00007ff7e575850c _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2d750c)
#4  0x00007ff7e570632c _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x28532c)
#5  0x00007ff7e556849f _ZN7QThread4execEv (libQt5Core.so.5 + 0xe749f)
#6  0x00007ff7e59c5cba n/a (libQt5DBus.so.5 + 0x23cba)
#7  0x00007ff7e55652ba n/a (libQt5Core.so.5 + 0xe42ba)
#8  0x00007ff7e50e98fd n/a (libc.so.6 + 0x868fd)
#9  0x00007ff7e516ba60 n/a (libc.so.6 + 0x108a60)
ELF object binary architecture: AMD x86-64
oct 18 09:26:03 hostname systemd[1174]: Failed to start Xdg Desktop Portal For KDE.