Can you paste the chromium-browser.desktop file? Perhaps it's marked as "not show in kde" or something like that.

Created attachment 100523 [details]
Chromium desktop file

Thanks for looking into this. I've attached it.

Thanks. Interesting, my /usr/share/applications/chromium-browser.desktop is identical to yours and mine shows up in both Kickoff and KRunner just fine :/

Can you check whether it shows up in (right click Application Launcher) → Edit Applications and there in the "Internet" category? Also, can you check whether you don't (somehow) created a chromium-browser.desktop in ~/.local/share/applications, files in there take precedence over system-wide installed ones?

Chromium shows fine for me in Middle click on Desktop menu and in Kickoff in:

Distribution: KDE neon Developer Edition Unstable Branches
KDE Plasma Version: 5.10.90
KDE Frameworks Version: 5.37.0
Qt Version: 5.9.1
Kernel Version: 4.10.0-32-generic

Issue still exists for me with fresh install.

Chromium shows for me in:
Unity
Gnome
i3/dmenu
i3/roti

Chromium does not show in plasma launcher, either by search or looking in the internet section.

The relevant section of /usr/share/applications/chromium-browser.desktop is:

```
Exec=chromium-browser %U
Terminal=false
X-MultipleArgs=false
Type=Application
Icon=chromium-browser
Categories=Network;WebBrowser;
MimeType=text/html;text/xml;application/xhtml_xml;x-scheme-handler/http;x-scheme-handler/https;
StartupNotify=true
Actions=NewWindow;Incognito;TempProfile;
X-AppInstall-Package=chromium-browser
```

Here is mine /usr/share/applications/chromium-browser.desktop file:

[Desktop Entry]
Version=1.0
Name=Chromium Web Browser
GenericName=Web Browser
Comment=Access the Internet
Exec=chromium-browser %U
Terminal=false
X-MultipleArgs=false
Type=Application
Icon=chromium-browser
Categories=Network;WebBrowser;
MimeType=text/html;text/xml;application/xhtml_xml;x-scheme-handler/http;x-scheme-handler/https;
StartupNotify=true
Actions=NewWindow;Incognito;TempProfile;
X-AppInstall-Package=chromium-browser

[Desktop Action NewWindow]
Name=Open a New Window
Exec=chromium-browser

[Desktop Action Incognito]
Name=Open a New Window in incognito mode
Exec=chromium-browser --incognito

[Desktop Action TempProfile]
Name=Open a New Window with a temporary profile
Exec=chromium-browser --temp-profile

Chromium has now moved to a snap for Ubuntu based distributions so that's what I've installed and it's showing in my menu with latest Plasma from git master.

Can you please test and confirm if this is still an issue, thanks.

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
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If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!