Compatibility Report

• Name of the game with compatibility issues: Elden Ring
• Steam AppID of the game:440408

System Information

• GPU:
• Video driver version:
• Kernel version: <!-- 6.8.0-35-generic>
• Link to full system information report as Gist: https://gist.github.com/Tomjlennon/7d75927af526812e9d96fa507ecb3b69
• Proton version: Proton experimental

I confirm:

• [Y ] that I haven't found an existing compatibility report for this game.
• [Y] that I have checked whether there are updates for my system available.
  steam-1245620.log

Symptoms clicking on play in steam launches the game but no window appears and the steam button returns to green "play"

Steam runtime information.txt
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Reproduction