Created attachment 177570 [details] Example SUMMARY Some running applications may display their icon in the taskbar, but for some reason, that same icon does not appear in the window title bar (it shows the default Wayland icon instead). I tested three applications from different sources in KDE Neon Testing, and the results vary: Here, Bad refers to an application that displays an icon on the taskbar but lacks one in the window title bar. — Nekoray Native: Bad — virt-manager Native: OK Flatpak: Bad — LibreOffice (in all versions the icon is absent in the window title bar, but is present on the taskbar) Native: Bad Flatpak: Bad Snap: Bad Depending on the distribution, some details may differ, but the issue is clear. Why does the taskbar recognize the application icon while the window title bar does not? OBSERVED RESULT The icon is not present in the window title bar, but it is present in the taskbar. EXPECTED RESULT The icon should appear both on the taskbar and in the window title bar (except in cases where the icon cannot be retrieved). SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE Neon Testing KDE Plasma Version: 6.2.90 KDE Frameworks Version: 6.11.0 Qt Version: 6.8.1
This will be an application bug, it does not set its app_id properly or the desktop file cannot be found. The taskmanager is running additional heuristics
(In reply to David Redondo from comment #1) > This will be an application bug, it does not set its app_id properly or the > desktop file cannot be found. The taskmanager is running additional > heuristics I understand that this is an application bug. But can’t we at least partially address this issue on behalf of the app? I think having any icon is better than showing the Wayland icon for many applications.