Installed webapps don't associate with their launcher on Wayland Ozone platform

[wjt]

I learned that since Chromium 100, there is a "Preferred Ozone platform" setting in chrome://flags. If you set it to "Auto" (the default is "Default") then Wayland is used if available. It works quite nicely but something is awry with installed web apps.

1. Browse to https://www.nytimes.com/games/wordle/
2. Hit ⋮ → More tools → Create shortcut…
3. In the “Create shortcut?” dialog, tick “☑ Open as window” and press OK
4. Close the resulting window
5. From GNOME's app grid, launch Wordle
6. Hold Alt and press Tab, or check the running apps on the dash

With non-Flatpak:ed Google Chrome, Wordle appears with its own app icon in Alt+Tab and the dash. With Flatpak:ed Chromium, it is grouped together with my other Chromium windows.

[wjt]

Please forgive this being in screenshot form but I can't copy-paste from GNOME Shell's lg console.

r(4) is the Wordle window when Chromium is set to be a Wayland app.
r(8) is the Wordle window when Chromium is set to be an X11 app.

[wjt]

IIRC Mutter or Shell has some crazy heuristics for Chromium's WMClass in particular

[refi64]

This might be an upstream bug: https://bugs.chromium.org/p/chromium/issues/detail?id=1164782#c6

[christianfosli]

This might be an upstream bug: https://bugs.chromium.org/p/chromium/issues/detail?id=1164782#c6

I wrote that comment, it was running flatpak chromium though. I never tried non-flatpaked chromium as I assumed the results would be the same.

[zocker-160]

I have this same issue on Kubuntu on X11. It only happens when using the Chromium Flatpak.

Interestingly enough this problem does not happen with the Google Chrome Flatpak, where they fixed it some time ago
see: flathub/com.google.Chrome#39

[teohhanhui]

fwiw I'm using com.google.Chrome and am facing the same issue when running with --gtk-version=4 --ozone-platform-hint=auto (on Wayland). When running under XWayland it's fine.

[adombeck]

Same issue here when running Chromium or Chrome on Wayland via Flatpak. No issue when running Chromium without Flatpak.

[sepehr]

Experiencing same as @adombeck.

[ljrk0]

Having the same issue and solved it by editing the .desktop file similar as described here: https://forum.manjaro.org/t/web-apps-no-longer-have-an-icon/104534

For any application with hash $hash which opens to website https://$domain/$path on launch, the .desktop's Exec and StartupWMClass fields should look like:

Exec=flatpak 'run' '--command=/app/bin/chromium' 'org.chromium.Chromium' '--profile-directory=Default' '--app-id=$hash' '--app=$url'
StartupWMClass=chrome-$domain__$xpath-Default

where $xpath is the $path with all slashes / replaced by underscores _.

[chsjr1996]

Following the example of @ljrk0 I made this modification:

Before

StartupWMClass=crx_bdemgigmjhobefogpblhomeihekoaajf

After

StartupWMClass=chrome-bdemgigmjhobefogpblhomeihekoaajf-Profile_1

The changes includes replace crx_ to chrome- at the beginning and append the current Profile ID, in my case -Profile_1 (but this can be -Default in another Chromium profile).