Compatibility Report

• Name of the game with compatibility issues: Little Busters! English Edition
• Steam AppID of the game: 635940

System Information

• GPU: Nvidia GT 730
• Driver/LLVM version: nvidia 470.86
• Kernel version: 5.13.0-22
• Full system info: link to Gist
• Proton version: 6.3-8

I confirm:

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

Symptoms

1. The game will not start after restarting my computer.
2. The game will only start again at random if I launch it enough times. After it launches, there are no problems. Restarting the game itself after it begins to start again poses no problems until I restart my computer.
3. There is no pattern to when the game will decide to run again other than to install a completely new Proton version, but it will eventually stop working on the other Proton version too. Re-installing steam doesn't work, re-installing proton doesn't work, installing new kernel does until the game fails again much like it does with a newer proton version.

This ZIP file has two logs, one of when the game starts successfully, and of when it doesn't.
littlebusters_logs_double_log.zip

Reproduction

Try starting the game. It will likely work the first time.