Hello @Ruff9, please copy the contents of Steam Runtime Diagnostics from Steam (Steam -> Help -> Steam Runtime Diagnostics) and put it in a gist, then include a link to the gist in this issue report.
I got it to work by forcing the Proton version to Proton experimental. Never understood it, but now it's working.
Your system information
Please describe your issue in as much detail as possible:
Since start of july, some games stopped working. I don't know if it was a Ubuntu update or a Steam update.
I reinstalled Steam today, and if I launch the client via console and try to launch a game, I get this return.
The game start to load, but fail to launch.
I read this thread : https://github.com/ValveSoftware/steam-for-linux/issues/9164 but the issue reported was only about excessive logs, not games crashing.
I read about potential missing 32bits OpenGL libraries, but I can't find which libraries are missing, if any.
Update : Steam Runtime Diagnostics https://gist.github.com/Ruff9/711092b81428b05fef12dd9089f8e943