Ubuntu isn't suitable for gaming... or anything at all. It's only really good for corporations because their offer paid support if you get Pro. Instead, I'd re

Ubuntu isn't suitable for gaming... or anything at all. It's only really good for corporations because their offer paid support if you get Pro. Instead, I'd recommend switching to something more optimised for gaming, like Bazzite or Nobara. Both work fine with nVidia cards. But I also recommend trying a different Proton, like Proton Experimental or Proton-GE, as they often get compatibility updates before mainstream Proton.