You need to change a setting in windows for remmina to work. I don’t remember which one it was but I think it was some where in the remotedesktop settings.

I have not had luck with vr (oculus. I hear index does better).

Which oculus headset do you have? If its a Quest then ALVR is the way to go. The wired only ones dont really work. If you want to see your desktop in vr, then you can use WlxOverlay-S for that.