Compatibility Report

• Name of the game with compatibility issues: VRChat
• Steam AppID of the game: 438100

System Information

• GPU: AMD RX 7800 XT
• Video driver version: Mesa 24.0.8
• Kernel version: 6.9.1 Zen Kernel
• Link to full system information report as Gist: https://gist.github.com/OzzyHelix/5bf35f2a77008446adae2827a938b72c
• Steam Runtime Infomation: https://gist.github.com/OzzyHelix/4f334c82e7c48d44b0ad5fb2fb7af86c
• Proton version: Proton 9 GE

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

VRChat's Anti Aliasing setting when enabled causes microstuttering on SteamVR/ALVR

Reproduction

load up SteamVR on AMD RX 7800 XT
launch VRChat with Proton
enable anti aliasing and disable anti aliasing
it occurs at 90hz and 120hz

steam-438100.log