Not exactly potato, but my performance on Linux sucks ass and I believe it's mostly due to drivers. I am mainly gaming as of now, so not running games I can run on Windows is no go.
GTX 750 + i-4460. So yeah, low end but servicable...on windows. Tried Linux Mint, Nobara and CachyOS. My benchmark was Fallout 76 and Hogwarts Legacy. On windows both work. On Linux, no matter the distro, Hogwarts dies pre "press start" and F76 blinks, lags and freezes. In both cases after I already set settings as low as I could, lot lower than Windows.
Oh and yeah I tried various fixes and tricks, used both steam proton and GE, tried to adjust commands. Nothing worked. And all I am asking for is to match windows performance.