What stopped working:
- GzDoom (native, black screen after choosing .wad)
- Orcs Must Die 1 & 2 (proton, either doesn't launch at all, or launches with severe graphical issues such as the menu and buttons missing or the whole thing being pink and green)
- serious sam tfe, tse; painkiller black (wine via either bottles or pol, extreme speedup every 5 seconds)
- luxor 3 (bottles, crashes on launch)
- hotline miami 2 (proton, crash on launch)
- lego indy 2 (bottles, sound effects at 150% loudness)
most of these worked previously, but seemingly broke out of nowhere, unless driver or kernel updates wrecked thwm, but if that is the case i haven't the faintest clue on how to troubleshoot that besides trying every previous kernel i can still download.
Device: Legion 5-15, 16gb ram, radeon 5 4600, nvidia rtx 3060 mobile, newest version of mint and newest LTS kernel. LUKS partition. I'll add more info when i get home.
So, tl;dr:
- how to troubleshoot proton games
- how to troubleshoot wine games in bottles and pol
- how to prevent games breaking out of nowhere in the future
At most i updated my system and kernel, didn't fiddle with anything else
I'm not familiar with mint, but maybe you can see whether you can easily downgrade to the previous version you had. And hold off on the updates until a fix is published for the broken stuff.
But before that, take a look at the mint communities and see whether it's a known issue and whether there is a manual intervention needed to fix it. Something like "newest update broke some proton games", etc.