Are you playing it on steam? Stuff works pretty well overall for me with it and Proton, some games work better with Proton GE, which is easy to install, for non steam stuff I've been using Lutris
I usually check protondb if I have any issues with a game, it seems some launch options can help with cyberpunk:
https://www.protondb.com/app/1091500
I usually check protondb if I have any issues with a game, it seems some launch options can help with cyberpunk: https://www.protondb.com/app/1091500