I've had a 3080 GPU on my main PC for a few years and haven't been able to use nightlight in linux since then (Which is why I've been on Windows 11 thus far). Before I spend money on another GPU, do the Intel or AMD GPUs support nightlight mode? I'm referring to this
My information might be outdated, but i believe nightlight is borked for wayland only. If you go out of your way and use xorg i think it works fine (dont quote me on this, i dont have an nvidia gpu and havent used x in a long time)