Bug 439138

SUMMARY
Some of my installed Flatpak applications are not showing in the KDE launcher, but they are showing in the GNOME launcher. The applications are Photos (org.gnome.Photos) and Extensions (org.gnome.Extensions). Other Flatpak applications like GNOME gedit, Firefox, Telegram and VLC can show in the KDE launcher properly.

STEPS TO REPRODUCE
1. Install Photos or Extensions from flatpak
2. They are not showing in KDE launcher
3. After reboot they are still not showing

OBSERVED RESULT
Applications are not showing in KDE launcher

EXPECTED RESULT
Applications are showing in KDE launcher

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Fedora 34
(available in About System)
KDE Plasma Version: 5.22.2
KDE Frameworks Version: 5.83.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
Uninstalling and reinstalling the applications does not resolve the problem.

Rebooting does not resolve the problem.

echo $XDG_DATA_DIRS gives:
/home/van/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share

Affected desktop files:
/var/lib/flatpak/exports/share/applications/org.gnome.Extensions.desktop
[Desktop Entry]
Type=Application
Name[be]=Пашырэнні
Name[bn_IN]=এক্সটেনশনগুলি
Name[ca]=Extensions
Name[cs]=Rozšíření
Name[da]=Udvidelser
Name[de]=Erweiterungen
Name[el]=Επεκτάσεις
Name[en_GB]=Extensions
Name[eo]=Etendaĵoj
Name[es]=Extensiones
Name[eu]=Hedapenak
Name[fa]=افزونه‌ها
Name[fi]=Laajennukset
Name[fr]=Extensions
Name[fur]=Estensions
Name[gl]=Extensións
Name[he]=הרחבות
Name[hr]=Proširenja
Name[hu]=Kiterjesztések
Name[id]=Ekstensi
Name[it]=Estensioni
Name[ja]=拡張機能
Name[kab]=Isiɣzaf
Name[kk]=Кеңейтулер
Name[ko]=확장
Name[lt]=Plėtiniai
Name[lv]=Paplašinājumi
Name[mjw]=Extensions
Name[nb]=Utvidelser
Name[nl]=Uitbreidingen
Name[os]=Уӕлӕмхасӕнтӕ
Name[pa]=ਇਕਸਟੈਨਸ਼ਨ
Name[pl]=Rozszerzenia
Name[pt]=Extensões
Name[pt_BR]=Extensões
Name[ro]=Extensii
Name[ru]=Расширения
Name[sk]=Rozšírenia
Name[sl]=Razširitve lupine
Name[sr]=Проширења
Name[sv]=Tillägg
Name[tr]=Uzantılar
Name[uk]=Розширення
Name[zh_CN]=扩展
Name[zh_TW]=擴充套件
Name=Extensions
Icon=org.gnome.Extensions
Comment[af]=Stel GNOME Shell-uitbreidings op
Comment[an]=Configurar as extensions de GNOME Shell
Comment[ar]=اضبط امتدادات صدفة جنوم
Comment[as]=GNOME শ্বেল সম্প্ৰসাৰনসমূহ সংৰূপণ কৰক
Comment[be]=Наладзіць пашырэнні абалонкі GNOME
Comment[bg]=Настройки на разширенията на обвивката
Comment[bn_IN]=GNOME সেল এক্সটেনশন কনফিগার করুন
Comment[bs]=Podesi GNOME Shell proširenja
Comment[ca]=Configureu les extensions del GNOME Shell
Comment[ca@valencia]=Configureu les extensions del GNOME Shell
Comment[ckb]=ڕێکخستنی زیادکراوەکانی گنۆم شێڵ
Comment[cs]=Nastavit rozšíření pro GNOME Shell
Comment[da]=Konfigurér GNOME Shell-udvidelser
Comment[de]=GNOME-Shell-Erweiterungen einrichten
Comment[el]=Ρύθμιση επεκτάσεων του GNOME Shell
Comment[en_GB]=Configure GNOME Shell Extensions
Comment[eo]=Agordi GNOME-ŝelajn kromprogramojn
Comment[es]=Configurar las extensiones de GNOME Shell
Comment[et]=GNOME Shelli laienduste seadistamine
Comment[eu]=Konfiguratu GNOME Shell-eko gehigarriak
Comment[fa]=پیکربندی افزونه‌های پوستهٔ گنوم
Comment[fi]=Hallitse Gnome Shell -laajennuksia
Comment[fr]=Configurer les extensions Shell de GNOME
Comment[fur]=Configure lis estensions di GNOME Shell
Comment[ga]=Cumraigh Eisínteachtaí GNOME Shell
Comment[gd]=Rèitich leudachain Slige GNOME
Comment[gl]=Configure as extensións de GNOME Shell
Comment[gu]=GNOME Shell ઍક્સટેન્શનને રૂપરેખાંકિત કરો
Comment[he]=הגדרת הרחבות GNOME Shell
Comment[hi]=गनोम शेल एक्सटेंशन विन्यस्त करें
Comment[hr]=Podesi proširenja GNOME ljuske
Comment[hu]=GNOME Shell kiterjesztések beállítása
Comment[ia]=Configurar le extensiones GNOME Shell
Comment[id]=Konfigurasi Ekstensi GNOME Shell
Comment[is]=Stilla GNOME Shell Extension skeljarviðbætur
Comment[it]=Configura le estensioni di GNOME Shell
Comment[ja]=GNOME Shell 拡張機能の設定を行います
Comment[kk]=GNOME Shell кеңейтулерін баптау
Comment[km]=កំណត់​រចនាសម្ព័ន្ធ​ផ្នែក​បន្ថែម​របស់ GNOME សែល
Comment[kn]=GNOME ಶೆಲ್ ಎಕ್ಸ‍ಟೆನ್ಶನ್ಸ್ ಅನ್ನು ಸಂರಚಿಸಿ
Comment[ko]=그놈 셸 확장을 설정합니다
Comment[ky]=GNOME Shell кеңейтмелерин ырастоо
Comment[lt]=Konfigūruoti GNOME Shell plėtinius
Comment[lv]=Konfigurēt GNOME Shell paplašinājumus
Comment[ml]=ഗ്നോം ഷെല്‍ എക്സ്റ്റെന്‍ഷനുകള്‍ ക്രമീകരിയ്ക്കുക
Comment[mr]=GNOME शेल एक्सटेंशन्स् संरचीत करा
Comment[ms]=Konfigur Sambungan-Sambungan Shell GNOME
Comment[nb]=Sett opp utvidelser for GNOME Shell
Comment[ne]=जिनोम सेल  विस्तारहरू कन्फिगर
Comment[nl]=Gnome Shell-uitbreidingen configureren
Comment[oc]=Configurar las extensions GNOME Shell
Comment[or]=GNOME ସେଲ ଅନୁଲଗ୍ନଗୁଡ଼ିକ
Comment[pa]=ਗਨੋਮ ਸ਼ੈਲ ਇਕਸਟੈਸ਼ਨ ਸੰਰਚਨਾ
Comment[pl]=Konfiguracja rozszerzeń powłoki GNOME
Comment[pt]=Configurar o Extensões à interface GNOME
Comment[pt_BR]=Configure extensões do GNOME Shell
Comment[ro]=Configurarea extensiilor pentru Vizualizatorul activităților GNOME
Comment[ru]=Настроить расширения GNOME Shell
Comment[sk]=Nastavenie rozšírení pre Shell prostredia GNOME
Comment[sl]=Nastavitve razširitev lupine GNOME
Comment[sr]=Подесите проширења Гномове шкољке
Comment[sr@latin]=Podesite proširenja Gnomove školjke
Comment[sv]=Konfigurera tillägg för GNOME-skal
Comment[ta]=க்னோம் ஷெல் நீட்சிகளை வடிவமை
Comment[te]=గ్నోమ్ షెల్ పొడిగింతలను స్వరూపించు
Comment[tg]=Танзимоти васеъшавиҳои восити GNOME
Comment[th]=ตั้งค่าส่วนขยายต่างๆ ของเชลล์ GNOME
Comment[tr]=GNOME Kabuğu Uzantılarını Ayarla
Comment[ug]=گىنوم Shell كېڭەيتمىسىنى سەپلەش
Comment[uk]=Налаштувати розширення GNOME Shell
Comment[uz@cyrillic]=GNOME Shell кенгайтмаларини созлаш
Comment[vi]=Cấu hình phần mở rộng Hệ vỏ GNOME
Comment[zh_CN]=配置 GNOME Shell 扩展
Comment[zh_HK]=設定 GNOME Shell 擴充功能
Comment[zh_TW]=設定 GNOME Shell 擴充套件
Comment=Configure GNOME Shell Extensions
Exec=/usr/bin/flatpak run --branch=stable --arch=x86_64 --command=/app/bin/gnome-extensions-app org.gnome.Extensions
DBusActivatable=true
Categories=GNOME;GTK;Utility;
OnlyShowIn=GNOME;
X-Flatpak=org.gnome.Extensions

/var/lib/flatpak/exports/share/applications/org.gnome.Photos.desktop
[Desktop Entry]
Name[an]=Fotos
Name[ar]=الصور
Name[as]=ফ'টোসমূহ
Name[bg]=Снимки
Name[bs]=Fotografije
Name[ca]=Fotografies
Name[ca@valencia]=Fotografies
Name[ckb]=وێنەکان
Name[cs]=Fotky
Name[da]=Billeder
Name[de]=Fotos
Name[el]=Φωτογραφίες
Name[en_GB]=Photos
Name[eo]=Fotoj
Name[es]=Fotos
Name[et]=Fotod
Name[eu]=Argazkiak
Name[fa]=عکس‌ها
Name[fi]=Kuvat
Name[fr]=Photos
Name[fur]=Fotos
Name[ga]=Grianghraif
Name[gd]=Dealbhan
Name[gl]=Fotos
Name[gu]=ફોટાઓ
Name[he]=תמונות
Name[hr]=Fotografije
Name[hu]=Fényképek
Name[is]=Ljósmyndir
Name[it]=Foto
Name[id]=Foto
Name[ja]=写真
Name[kk]=Фотолар
Name[kn]=ಫೋಟೋಸ್
Name[ko]=사진
Name[lt]=Nuotraukos
Name[lv]=Fotogrāfijas
Name[mjw]=Arjan
Name[ml]=ചിത്രങ്ങള്‍
Name[ms]=Foto
Name[nb]=Bilder
Name[ne]=फोटो
Name[nl]=Foto’s
Name[oc]=Fòtos
Name[pa]=ਫ਼ੋਟੋ
Name[pl]=Zdjęcia
Name[pt]=Fotos
Name[pt_BR]=Fotos
Name[ro]=Fotografii
Name[ru]=Фотографии
Name[sk]=Fotografie
Name[sl]=Fotografije
Name[sr]=Фотографије
Name[sr@latin]=Fotografije
Name[sv]=Foton
Name[te]=ఛాయాచిత్రాలు
Name[tg]=Суратҳо
Name[tr]=Fotoğraflar
Name[uk]=Світлини
Name[vi]=Ảnh
Name[zh_CN]=照片
Name[zh_HK]=相片
Name[zh_TW]=相片
Name=Photos
Comment[an]=Accedir, organizar y compartir fotos
Comment[ar]=اعرض و نظّم و شارك الصور
Comment[as]=ফ'টোসমূহ অভিগম, সংঘঠিত আৰু অংশীদাৰী কৰক
Comment[bg]=Преглед, организиране и споделяне на снимки
Comment[bs]=Pristupite,organizujte i podjelite slike
Comment[ca]=Accediu, gestioneu i compartiu fotografies
Comment[ca@valencia]=Accediu, gestioneu i compartiu fotografies
Comment[cs]=Zobrazovat, třídit a sdílet fotografie
Comment[da]=Tilgå, organisér og del billeder
Comment[de]=Auf Fotos zugreifen, diese verwalten und freigeben
Comment[el]=Προσπελάστε, οργανώστε και μοιραστείτε τις φωτογραφίες σας
Comment[en_GB]=Access, organise and share photos
Comment[eo]=Aliri, administri kaj kunhavigi fotojn
Comment[es]=Acceder, organizar y compartir fotos
Comment[et]=Fotode vaatamine, haldus ja jagamine
Comment[eu]=Atzitu, antolatu eta partekatu argazkiak
Comment[fa]=به عکس‌ها دسترسی داشته، مرتب و هم‌رسانی کنید
Comment[fi]=Hallitse, järjestä ja jaa kuviasi
Comment[fr]=Accéder à, organiser et partager des photos
Comment[fur]=Dopre, ministre e condivît fotos
Comment[ga]=Déan rochtain ar, eagraigh, agus comhroinn grianghraif
Comment[gd]=Dealbhan inntrigeadh, a chur an rian ’s a cho-roinneadh
Comment[gl]=Acceder, organizar e compartir fotos
Comment[gu]=ફોટાઓ દાખલ કરો, ગોઠવો અને શૅર કરો
Comment[he]=לגשת, לארגן ולשתף תמונות
Comment[hr]=Pristupite, organizirajte i dijelite fotografije
Comment[hu]=Fényképek elérése, rendszerezése és megosztása
Comment[is]=Skipuleggja, njóta og deila myndunum þínum
Comment[it]=Accede, organizza e condivide foto
Comment[id]=Mengakses, menata, dan berbagi foto
Comment[ja]=写真の表示、整理、共有を行います
Comment[kk]=Фотоларға қатынау, реттеу және олармен бөлісу
Comment[ko]=사진을 접근하고, 정리하고 공유하세요
Comment[lt]=Prieikite, tvarkykite ir dalinkitės savo nuotraukomis
Comment[lv]=Piekļūstiet, organizējiet, dalieties ar fotogrāfijām
Comment[ml]=ചിത്രങ്ങൾ അക്സസ്സ് ചെയ്യുക,ചിട്ടപ്പെടുത്തുക,പങ്കിടുക
Comment[ms]=Capai, urus dan kongsi foto-foto
Comment[nb]=Se på, organiser og del bilder
Comment[nl]=Foto’s bekijken, beheren en delen
Comment[oc]=Accedir, organizar e partejar de fòtos
Comment[pa]=ਫ਼ੋਟੋ ਵਰਤੋਂ, ਪਰਬੰਧ ਕਰੋ ਅਤੇ ਸਾਂਝੀਆਂ ਕਰੋ
Comment[pl]=Oglądanie, organizowanie i udostępnianie zdjęć
Comment[pt]=Aceder, organizar e partilhar fotos
Comment[pt_BR]=Acesse, organize e compartilhe fotos
Comment[ro]=Accesați, organizați și partajați fotografii
Comment[ru]=Доступ, управление и обмен фотографиями
Comment[sk]=Pristupuje, organizuje a sprístupňuje fotografie
Comment[sl]=Urejanje in izmenjava fotografij.
Comment[sr]=Приступите, разврстајте и делите фотографије
Comment[sr@latin]=Pristupite, razvrstajte i delite fotografije
Comment[sv]=Visa, organisera och dela foton
Comment[te]=ఛాయాచిత్రాలను ప్రాప్యించండి, నిర్వహించుకోండి, పంచుకోండి.
Comment[tg]=Ба суратҳо дастрасӣ пайдо кунед, онҳоро мураттаб ва мубодила кунед
Comment[tr]=Fotoğraflara erişin, yönetin ve paylaşın
Comment[uk]=Доступатись, упорядковувати і ділитись фотографіями
Comment[vi]=Truy cập, tổ chức và chia sẻ ảnh
Comment[zh_CN]=访问、管理并分享您的照片
Comment[zh_HK]=存取、管理、分享相片
Comment[zh_TW]=存取、管理、分享相片
Comment=Access, organize and share photos
Exec=/usr/bin/flatpak run --branch=stable --arch=x86_64 --command=gnome-photos org.gnome.Photos
Icon=org.gnome.Photos
DBusActivatable=true
StartupNotify=true
Terminal=false
Type=Application
OnlyShowIn=GNOME;
Categories=GNOME;GTK;Core;Graphics;Photography;
Keywords[an]=Fotos;Imachens;
Keywords[ar]=صورة;صور;
Keywords[as]=ফ'টোসমূহ;ছবিসমূহ;
Keywords[bg]=Снимки;Изображения;Photos;Pictures;
Keywords[bs]=Fotogradije;Slike;
Keywords[ca]=Fotografies;Imatges;
Keywords[ca@valencia]=Fotografies;Imatges;
Keywords[cs]=fotografie;fotka;fotky;snímek;snímky;obrázek;obrázky;
Keywords[da]=Billeder;Fotografier;
Keywords[de]=Fotos;Bilder;
Keywords[el]=Φωτογραφίες;Εικόνες;Photos;Pictures;
Keywords[en_GB]=Photos;Pictures;
Keywords[eo]=Fotoj;Bildoj;
Keywords[es]=Fotos;Imágenes;
Keywords[et]=Fotod;Pildid;Pilt;
Keywords[eu]=Argazkiak;Irudiak;
Keywords[fa]=عکس;تصاویر;تصویر;Photos;Pictures;
Keywords[fi]=Photos;Pictures;Valokuvat;Kuvat;
Keywords[fr]=photos;images;
Keywords[fur]=Fotos;Imagjins;
Keywords[ga]=Grianghraif;Pictiúir;
Keywords[gd]=Photos;Pictures;dealbhan;delabh;dealbhan-camara;
Keywords[gl]=Fotos;Imaxes;
Keywords[gu]=ફોટાઓ;ચિત્રો;
Keywords[he]=תמונות;תצלומים;צילומים;
Keywords[hr]=Fotografije;Slike;
Keywords[hu]=Fényképek;Képek;
Keywords[is]=Myndir;ljósmyndir;
Keywords[it]=Foto;Immagini;
Keywords[id]=Foto;Gambar;
Keywords[ja]=Photos;Pictures;写真;フォト;絵;画像;
Keywords[kk]=Photos;Pictures;Фотолар;Суреттер;
Keywords[kn]=ಫೋಟೋಗಳು;ಚಿತ್ರಗಳು;
Keywords[ko]=Photos;사진;Pictures;그림;
Keywords[lt]=Nuotraukos;Paveikslėliai;
Keywords[lv]=Attēli;Fotogrāfijas;
Keywords[mjw]=Photos;Pictures;
Keywords[ml]=Photos;Pictures;
Keywords[ms]=Foto;Gambar;
Keywords[nb]=Foto;Bilder;
Keywords[ne]=फोटो;तस्विर;
Keywords[nl]=Photos;Pictures;Foto’s;Afbeeldingen;Foto's;
Keywords[oc]=fòtos;imatges;
Keywords[pa]=ਫ਼ੋਟੋ;ਤਸਵੀਰਾਂ;
Keywords[pl]=Zdjęcia;Zdjęcie;Fotografia;Fotografie;Obrazy;Obraz;Obrazki;Obrazek;Retuszowanie;
Keywords[pt]=Fotografias;Imagens;Fotos;
Keywords[pt_BR]=Foto;Fotos;Imagem;Imagens;foto;imagem;fotos;imagens;
Keywords[ro]=Photos;Pictures;Poze;Fotografii;
Keywords[ru]=фотографии;картинки;изображения;
Keywords[sk]=Fotografie;Obrázky;
Keywords[sl]=Fotografije; Slike;Photo;
Keywords[sr]=Photos;Pictures;фотографије;слике;fotografije;slike;
Keywords[sr@latin]=Photos;Pictures;fotografije;slike;fotografije;slike;
Keywords[sv]=Foton;Bilder;
Keywords[te]=ఛాయాచిత్రాలు, చిత్రాలు;
Keywords[tg]=Суратҳо;Тасвирҳо;
Keywords[tr]=Fotoğraflar;Resimler;Fotolar;
Keywords[uk]=Світлини;Фотографії;
Keywords[vi]=Photos;Pictures;Ảnh;anh;
Keywords[zh_CN]=Photos;Pictures;照片;相片;图片;
Keywords[zh_HK]=Photos;Pictures;相片;照片;
Keywords[zh_TW]=Photos;Pictures;相片;照片;
Keywords=Photos;Pictures;
X-Flatpak=org.gnome.Photos