I wish I had known about all these problems with Nvidia's shit on Linux and gone with a new AMD GPU instead of a 3070Ti. I HAD been using AMD/Radeon since the late-00s, I don't know WTF was wrong with me. Nvidia wasn't this bad in the early 2000s. It was the only way to run hardware-accelerated Unreal Tournament on Linux at the time.
Two years ago I made the switch to AMD when I needed to replace my ageing 1060 (still on Windows back then) and I'm so glad I did because I avoid all of the headaches with getting Nvidia to work on Linux
Mine works fine. Never did check which drivers I'm using though. I like the cuda cores for davinci resolve, and dlss for games that struggle on my ultra wide monitor (looking at you, cyberpunk)
If it wasn't for those 2 things I will be gone next card refresh. Truthfully the main reason I went Nvidia in the first place was old habits. ATI/AMD traditionally had no driver support for Linux, or at least worse than Nvidia who actually had an official driver package. Things have changed though.
If a game comes with FSR out of the box use that tho. It will not scale stuff like the UI for instance, so you get the UI at native resolution, but the game is getting upscaled. If you use Gamescope for scaling it will scale the whole image and it's limited to FSR1 while games can come with FSR2 or even 3 (I think 3 is just added frame generation on top which is only useful for playing at >60fps).
End user experience is mostly fine. The issues are in how they interact with kernel developers. Or, like, anyone else who doesn't work inside the company. They sniff their own bullshit and expect you to agree that it's a rose.
You can just get an AMD APU and run your PC in hybrid mode. I did that Garuda Linux recently and it was great. Allowed me to finally switch to using Wayland.