On top of the significantly worse software on AMD's side (literally didn't work on windows in particular - so the "performs as good on both systems" is a nonstarter, some GGUF library dependency just doesn't work/exist under AMD on windows). Had me running the AMD card on windows under WSL (not a problem with nvidia though, that ran just fine on windows-side directly).
Aaaand also the other AMD bugs, such as the pink squares display corruption that has been an active issue for my GPU in particular (7900XTX) for over a year, maybe approaching two at this point, with no fix in sight from the AMD team (barely and ack at all - not on a single patch notes, just a bunch of reddit discussion). Really regret spending so much on an AMD gpu.
Nvidia’s drivers are trash for gaming on Linux and the majority of your “compatibility and framerate issues” are because you’re using a sub-par product for the job.
I run hyprland, seems to be the only wayland based keyboard-forward WM that has good nvidia support (and, allegedly, supports HDR, though I haven't got this working). I heard gnome was pretty good otherwise. I was running i3 before and it also worked fine, however once I got into wanting to get streaming working, there wasn't good compatibility between i3/xorg and tools like sunshine. I believe steam streaming worked fine on it though iirc.
The only thing I miss from windows: easy streaming with sunshine/moonlight. Steam streaming works (usually heh) but it took me a couple days of fiddling to get a stream to work at all through sunshine, and it is choppy. But for local gaming, I don't miss windows at all, I'm so glad to finally have all my drives converted from NTFS to ext4.
I don't see it on the Dell site anymore, only more expensive, lesser configurations (good timing on my part?).
Yeah, I really want to put in the time to try out various games, but realistically, the whole point of getting a second computer and installing Linux was to be able to train and serve models, and switching between serving a model (that people in my house want to use at random times) and gaming didn't seem like a great choice. If I did get good results, I'd seriously consider wiping Windows 11 from my older machine (an older Alienware with a 4090), but to be honest, I'm perfectly comfortable on Windows desktop.