Hello @thelyric27, your mesa 23.2.1 driver install is missing features that DXVK requires to start up in newer Proton versions. You can try updating to a newer mesa version from a PPA like kisak-mesa stable, otherwise, pick one game to ponder with bazzite and post your findings with a Proton log and steam runtime diagnostics on the relevant game's compatibility report.
proton 9.0-4x1 2025-07
On versions of Proton above 9.0-4 I can't start a game with it because the game will pop up with some kind of error message about not my gpu not supporting directx. I can't figure out what's wrong with it, because these games were working a while ago. i've tried updating Wine, using protontricks to install visual c++ redistributables, updated my distro version, even installed bazzite and had the same issue. For some examples, some of the games that currently do not work on experimental and intermittently crash when downgraded to Proton 9.0-4 are Deep Rock Galactic, Abiotic Factor, Helldivers 2, and Palworld. I'll post my system information below.
systeminfo.txt