As I said, I predicted it was trash in regards to programming. I'm ok with a bit of lag, or maybe some visual glitches. But I was not prepared to Valve pushing out a such untested steaming pile of crap for Linux. The gameplay could be good, but it does not seem like it from many opinions I heard. But anyway, without CS:GO and none of the game modes I liked in CS:S, I thought there was nothing to lose by trying it (well I was wrong, it took me ~1 hour reinstalling all packages due to not syncing before force restarting, but even if I'd though about it, I couldn't have done anything about it).
But as I said, I didn't even get to see more than the settings menu, which I find unnecessarily over engineered too - who the fuck cares about new settings if they just want adjusting something -, as it just crashed after switching between the 'game' and Firefox three times. Just crashed my whole system, and idk how. But I know that such errors happen to me with some very badly written engines, over engineered and run through wine. Which means Valve apparently just abandoned the Idea of supporting Linux at least ok-ish completely and fucked that poor source engine hard. Even 4A games' selfmade 4A engine has native Linux support, with RT, DLSS, FSR, etc. and no bugs. Yet Valve can't advance their engine to support a fraction of those features without lowering the quality to the level of a trashy Windows only engine run through wine.