Have you tried gnome connections? It’s more on the “quick and easy” rather than “professional” side, but maybe it does the job.
Tho I wonder whether it’s more of a windows-side issue… maybe windows 11 requires some kind of online authentication that cannot be implemented by other clients, and maybe this authentication can be turned off. I’m merely speculating here, but I know that remmina works for windows 10 so it’s suspicious.
It’s digital audio, not analog, I doubt the GPU could ever be an issue. I suspect either there was a bug in the interaction between pipewire and the drivers (on one side or the other), or an update changed the default sampling rate of pipewire