With the latest version of OptiScaler 0.9.4 for Linux, FSR 4.1.1 Int8 works on all supported and unsupported GPUs by setting Fsr4ForceEnableInt8=true in optiscaler.ini. Tested in RDNA2 steamdeck/steamOS and RDNA3 Rog Ally x Bazzite without fallback to FSR 3.1 in several games.
With the latest version of OptiScaler 0.9.4 for Linux, FSR 4.1.1 Int8 works on all supported and unsupported GPUs by setting
Fsr4ForceEnableInt8=trueinoptiscaler.ini. Tested in RDNA2 steamdeck/steamOS and RDNA3 Rog Ally x Bazzite without fallback to FSR 3.1 in several games.