Description:
I had both the ubuntu repository and the flatpak version of libreoffice installed. For some reason not important to the case here I deinstalled the repository version. Now whenever I open an impress file, the window bar in kde plasma doesn't show the impress icon anymore.
After re-installing the repository version, the icon again is shown even when running the flatpak version.

Steps to Reproduce:
1.Install both the repository and the flatpak version of libreoffice
2.Deinstall the repository version
3.

Actual Results:
when running impress (flatpak version installed only), the taskbar icon isn't shown.

Expected Results:
The icon in the taskbar should still be visible when running impress from flatpak


Reproducible: Always


User Profile Reset: No

Additional Info:
Version: 25.8.3.2 (X86_64) / LibreOffice Community
Build ID: 8ca8d55c161d602844f5428fa4b58097424e324e
CPU threads: 6; OS: Linux 6.14; UI render: default; VCL: gtk3
Locale: de-DE (de_DE.UTF-8); UI: de-DE
Flatpak
Calc: threaded

And

Version: 25.8.3.2 (X86_64) / LibreOffice Community
Build ID: 580(Build:2)
CPU threads: 6; OS: Linux 6.14; UI render: default; VCL: kf5 (cairo+wayland)
Locale: de-DE (de_DE.UTF-8); UI: de-DE
Ubuntu package version: 4:25.8.3~rc2-0ubuntu0.24.04.1~lo1
Calc: threaded