Hi,
Here is how I install NVIDIA drivers, and I’m a noob, and it worked so far for me:
But I disabled Secure Boot, it’s just too much PITA with Linux. I never got NVIDIA drivers to work reliably with Secure Boot on any distro I tried.
I have a 3080 and a 4080 though. I saw some people having difficulties with the 5000 series.
Also, NVIDIA drivers will break often with kernel updates.