Stating problems you've had as if they are things that will effect everybody makes you looks very silly. I could do the same thing by stating that Windows is garbage because it doesn't boot with rebar enabled and it bluescreens non stop. It's also consistently slower to boot, open any software, and less responsive overall. The default file manager is also pathetic, and the software management is frustrating.

It sounds like you had some significant problems with your setup, but the way you're describing it, it sounds like you didn't properly troubleshoot it.

GNOME and Plasma both have great fractional scaling support with Wayland. I have never had whatever problems you're describing with font rendering. On my machine it looks slightly better than windows, and slightly worse than MacOS. I used an Nvidia GPU with Linux for 4 years and never had any performance problems with the official driver.

Please realize your experience isn't the be-all and end-all that decides whether using Linux can be a good experience.