2077 is a rather intense game, but there are mods to ease the CPU burden and get that FPS up, if you are interested.
Most games aren’t so intense.
Also, unfortunately, Nvidia cards tend to prefer Windows. I was just asking about Windows vs Linux performance for 2077 specifically in another thread, and the consensus seems to be you are sacrificing a little bit of FPS over (sufficiently neutered) Windows, especially if certain proton features aren’t working.
And I am not anti Linux at all, I spend like 95% of my PC time in CachyOS on my dual boot desktop. But every time I've measured it in the past… that’s just how it is, even with a riced gamer Linux distro.