Unfortunately I don't have a lot of overlap with you. (I do own Star Citizen from the initial kickstarter, but haven't tried it on Linux. There IS a Bottles setup for it that says it works well, but I have no experience to share.)
Phasmophobia I thought I played on Linux a bunch, but the game itself was just terribly buggy. Could be that was Linux, but I could swear my friends on Windows were having similar problems. (One reason we don't play this anymore.)
The rest I haven't tried, so can't help. It feels like either you game quite a bit more broadly than I do, or you got really unlucky. Here's a quick list of my recently played games with no hiccups - maybe the issue is indy titles tend to work better?
Vampire Survivors Schedule I Kingdoms Reborn PULSAR: Lost Colony Mindustry Star Trek: Resurgence Tales and Tactics Powerwash Simulator Motor Town The Headliners Ale & Tale Tavern Space Engineers ...
No problems. Didn't really have to think about anything with any of these.
They are clearly enshittifying and may already be sharing data about you. Eject asap, friends.
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