It's mostly people on older cards with those problems I guess

Me for example on my GTX 1080 can't use G-Sync (monitor blacks out in specific fps ranges). Nvidia "fixed" this like 5 times already. Newer cards work correctly I guess?

I also get graphical bugs in Wayland after Nvidias final Wayland "fix". Other people somehow do not experience this so I guess newer cards work correctly (again)

Imo Nvidia just didn't bother fixing this on their old cards so there is a minority left with those problems which can be ghosted safely by Nvidia because "those bugs got fixed"

It's not uncommon for Nvidia to ignore their normal users since the most money comes from other companies purchasing their GPUs anyway