How to pin games to be launched by Steam to specific Plasma Virtual Desktop (Pager)?

vini.nu · January 22, 2023, 3:26pm

Currently when launch Flatpak Steam games, it is launched in current Plasma Virtual Desktop (Plasma Pager). I was thinking maybe I could pass some environment variable in Steam “launch command” which would launch full screen games in other than current VirtualDesktop.

Ideas?

Related:
https://forum.kde.org/viewtopic.php?f=111&t=173347
https://www.reddit.com/r/kde/comments/6c8o7f/howt_lock_applications_to_activities_and_virtual/

This looks promising (edit: it causes virtualdesktop-switch-spam-loop glitch when launching fullscreen game; if it worked would be wonders):

Kresimir · January 22, 2023, 5:00pm

I don’t know about Steam, since I don’t use it, but in general, if you want an application to be launched on a specific Virtual Desktop, you can set an Application Specific Rule.

Just open the Application and press Alt+F3, select More Actions and Configure Special Application Settings.

Then click on “+ Add Property” button and choose Virtual Desktop (under Size & Position).

For example, if I want to make Dolphin appear on Virtual Desktop 1, I can select it like this:

You can also do the same thing in System Settings, under Window Management, Window Rules.