I think it’s okay to start with arch BYMMV

hmm well i never had this specific issue and im not an expert in driver issue.

SO TL;DR I cant help you. sorry.

BUT (AND I KNOW IT SOUNDS DUMB or you might be doing it already)

I would recommend you do some A/B testing.

keep your setup the same and change only one thing at a time (like driver version, Wayland vs X11, kernel options, or compositor) so you can pinpoint exactly which change is causing the problem.

Maybe take a look into nvidia-{open,dkms,beta, etc} packages.

or something else entirely.

This might help you to at least get your system going so you can do your Video editing, graphic design, 3d modelling etc. If u want to get your system up and going right now(deadlines or something else) its not a bad idea to temporarily install windows and attack this problem later in free time with no pressure.

I hope you find a solution to the problem.

First Never download and install nvidia drivers from their websites (unless you know what you are doing).

second glitching is a broad term what do you mean by glitching?

screen tear, artifacts, ghosting???

We gonna need more data as in logs.

but i would recommend you follow proper steps from arch wiki.

But i know everybody dont like to read so this might help https://youtu.be/vrFPcCYUj2c (this is still sort of my polite way to say RTFM)