Hi Martin,
I am on windows and using the normal LTS Blender version from the Blender site. No need for the Steam version.
Using the Meta Quest 3 I Additionally installed VirtualDesktop which enables me to stream the scene via the “VR Scene Inspection” to the headset. From what I understand is that VirtualDesktop uses OpenXR under the hood and Blenders “VR Scene Inspection” is OpenXR -based.
On Linux I guess it’s going to be a completely different setup. Not sure if it’s even possible.
Other than inspecting the scene, I see no other use cases. Pretty awesome though.