Compatibility Report

• Name of the game with compatibility issues: The Fruit of Grisaia
• Steam AppID of the game: 345610

System Information

• GPU: RX 6950 XT
• Video driver version: Mesa 24.0.3
• Kernel version: 6.7.7-arch1-1
• Link to full system information report as Gist: https://gist.github.com/MuraPura/abda1c23b2a2c1e69799e8bb5fadc55d
• Proton version: Proton Experimental, Proton 8.0-5, Proton 4.11-13

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.

Experimental:
steam-345610-protonexperimental.log

Proton 8:
steam-345610-proton8.log

Proton 4:
steam-345610-proton4.log

Symptoms

The Fruit of Grisaia has multiple visual regressions that were not there in Proton 4. Three logs are provided: Proton Experimental and Proton 8 show the same graphical bugs, as does every version of Proton selectable until 4.11-13. In Proton 4.11-13, the game appears to run perfectly.

There is a lot of flickering present in the game. There is also another issue where character models will temporarily flicker when changing between two character models.

Reproduction

Here is a video showing the graphical bugs:

https://github.com/ValveSoftware/Proton/assets/59722249/ee33dc75-dd79-4e93-a369-f5fb73cb4f3d

Here is a zip folder containing the save used - simply place this folder in the game's compatdata folder at 345610/pfx/drive_c/users/steamuser/AppData/Roaming/Frontwing/The Fruit of Grisaia:

The Fruit of Grisaia.zip