Prusaslicer v2.9.0 (flatpak) - Import file dialog restricted the file/folder selection

[dbyy]

Description of the bug

When opening the dialog for importing a file (CTR-I, or over the menu) it's restricting the display of objects to the extensions defined by the DDL.
In the previous version v2.8.0) it showed all objects in the directory this included a link to my 3D object directory on the NAS.
Now I can't access this location anymore since is preselecting the objects that will be visible..
On top of that I can't not even access my 'mount' directory to access the NAS.

There should be an entry in the DDL that's allowing to list ALL objects in a given directory.

Project file & How to reproduce

Not project data available (first start of PS)

Checklist of files included above

• Project file
• Screenshot

Version of PrusaSlicer

v .2.9.0 flatpak

Operating system

Linux Mint v21.3

Printer model

Ender-3

[neophyl]

Please search for existing issues. This one has so many duplicates that there's a stickied item at the top of the page #13820
Its a flatpack issue. #13820 (comment)