Are you sure the game is running on the correct GPU?. My older GTX1080 was always supported fine by proton. I’m not familiar with how garuda is set up but i assume it has a properly working PRIME setup by default. See if you have nvtop installed and on which GPU the game actually runs.
For more info look here: https://wiki.archlinux.org/title/PRIME
Are you sure the game is running on the correct GPU?. My older GTX1080 was always supported fine by proton. I’m not familiar with how garuda is set up but i assume it has a properly working PRIME setup by default. See if you have nvtop installed and on which GPU the game actually runs. For more info look here: https://wiki.archlinux.org/title/PRIME