Hello @abc-mikey, we're tracking issues with games run with Proton in the Proton issue tracker. Additionally, we're using one issue report per unofficially supported game title, so I've gone ahead and transferred this issue report to https://github.com/ValveSoftware/Proton/issues/5613#issuecomment-1059957029.
Your system information
Please describe your issue in as much detail as possible:
Elden Ring plays well once started (apart from using Desktop Controller Configuration rather than that of game, and not stopping), but it fails to load more often than not. There three different ways that it doesn't start:
Elden Ring Launch options: PROTON_NO_FSYNC=1 gamemoderun %COMMAND% -windowed
Steps for reproducing this issue: