I play mainly Witcher 3, and DLSS worked (gets turned on, at least) since long ago (a minimum tinkering with environment variables is needed to force Proton into working with Nvidia). RTX I kept switched off as it gave me weird lightning artifacts, but recently I tried to turn it on with the latest Proton Hotfix and 535.129.03 drivers, and wow! it works and looks pretty good. Still caught an artifact or two in some places, but it might be a game’s own glitch.
I play mainly Witcher 3, and DLSS worked (gets turned on, at least) since long ago (a minimum tinkering with environment variables is needed to force Proton into working with Nvidia). RTX I kept switched off as it gave me weird lightning artifacts, but recently I tried to turn it on with the latest Proton Hotfix and 535.129.03 drivers, and wow! it works and looks pretty good. Still caught an artifact or two in some places, but it might be a game’s own glitch.