Decided to benchmark with my system quickly just to get some idea of performance, have a 4070ti for reference. I recall dlss frame gen giving markedly improved frames in windows.
Cyberpunk 2077 @3440x1440, Ultra + Raytracing on with ray traced lighting at ultra, no pathtracing. DLSS and FSR set to quality. All of these are just averages, nothing was really wild with minimum fps or anything.
DLSS only ~53 fps
DLSS + DLSS Frame Gen ~78 fps
DLSS + DLSS Frame Gen + DLSS Ray Reconstruction ~77 fps
AMD fsr 3 only ~48 fps
AMD fsr 3 + FSR Frame Gen ~94 fps
AMD fsr 3 + DLSS Frame Gen ~78 fps
I'm actually impressed with the performance of FSR frame gen, didn't expect it to be that much higher, could be that dlss frame gen is super new in linux? Probably not worth speculation. Also can't comment on perceived looks of them though, that's going to be super subjective.
This is all on arch with the most up to date nvidia open drivers with proton experimental.
Debian and derived is my go up generally, stable and I like apt, great out of the box on every machine I've used and personally found pretty much everything I want to use or run has debian and Ubuntu explicitly called out in their setup documentation. I use Ubuntu server a lot for work, I'm comfortable with it and it's supported in every cloud environment I've touched. Debian on my laptop, bench machine, armbian on my 3d printers, Ubuntu server on my home server (though I kinda want to move that to debian too, just lazy and it works)
I've got arch on my desktop, could have probably gone for debian unstable, but figured I'd go for it. I use aura for package management. Linux is linux though, be real that I personally don't find much of a difference beyond package management.