I just wrote a message here, but in a notification of another message a user told me that for Linux drivers, this was the right place. I copy and paste the message:
Hello. With the last two 460 Linux driver versions, me and more users have a problem playing with rFactor 2 using Steam Play/Proton. When we try to play on a race, the FPS are too low (20-30). With previous versions of the driver (450-455) everything is normal, and we can reach much more high fps rates (In my case between 80-100 fps). We report this problem on a Proton’s Github Issue:
Can someone at nvidia take a look at this problem?