im having the exact same issue as vikdaboss.
Quest 2 air link
fresh install cyberpunk and vr mod stuck in edgepeek mode.
no mods no extra things/overlays running.
also tried the cyber punk teaks you mention Ralf and no go
i can do the tutorial/start screen but as soon as i hit the game it becomes flat.
every now and then…..like 1 in 6 times i quickly switch between fullvr, immersive vr, and cinema modes and it makes the screen bigger and the screen will headtrack SLIGHTLY. but never motion controls or full vr.