If you use Virtual Desktop (installed on your Quest 2) you can use SteamVR wirelessly and don't need the Oculus software on your PC.
But you need a facebook account when you first setup your Quest 2, you basically can't get around that. Well you can, but it's complicated and not worth it IMO.
I know but I did not want to complicate things further. VD is still amazing piece of software even though official Airlink now exists.