Window icon missing under Wayland

[subpop]

Running the QOwnNotes flatpak under a Plasma Wayland session results in a generic Wayland icon in the taskbar.

I understand this to be the result of a mismatched .desktop file name (see this blog post. I believe QOwnNotes upstream has fixed this issue by renaming the desktop file to PBE.QOwnNotes.desktop (see upstream issue #993). I think maybe the renaming of the desktop file based on the org.qownnotes.QOwnNotes flatpak app-id might be breaking the ability to look up the application icon for the taskbar.

[Erick555]

I guess upstream needs to move from PBE.QOwnNotes.desktop to org.qownnotes.QOwnNotes and change OrganizationDomain accordingly. Or resubmit app to flathub under different name.

[pbek]

and change OrganizationDomain accordingly

that would break all settings

Or resubmit app to flathub under different name.

@stobbsm?

[subpop]

Regardless of what upstream does in the long term, wouldn't it make sense for the downstream flatpak to patch the OrganizationDomain to org.qownnotes.QOwnNotes to avoid this mismatch with its current app-id?

[Erick555]

In the comment above it was said it would break all settings for existing users which makes it an unfavorable change.

[walking-octopus]

Was there any progress on this? Both Flatpak and Wayland are increasingly becoming the default for many distros, especially the immutable distros like Silverblue where Flatpak is basically the only well-supported option, and this bug can be rather annoying to users who use Super+Number to switch between windows.

After trying to mess with Flatpak's .desktop files, I realized it won't apply my change to StartupWMClass, Thankfully, KDE has a nice Window Rules feature that can match all PBE.QOwnNotes windows and force their class to be set to QOwnNotes, fixing the issue.

While it is a much nicer temporary solution than just seeing Wayland icons everywhere, it still is just a hack. Regular users may not know or what to spend time implementing such workarounds just to fix a mildly annoying packaging bug. I'm putting it out there so that everyone in the same situation can avoid wasting their time in the future.