Earlier quoted context omitted.
It's reached the level where a game not working is a suprise. Space Marine 2 was the latest one for me, but Steam is great at refunds if you do it quickly enough.
Space Marine 2 works, at least on steam deck
Yea it seems very variable depending on hw / config etc. And the most recent patch at the time (I think this was during summer?) broke it for a bunch of other people on desktop that had it working before.
For me it crashed after the first click in the menu.