Great to know that you are aware of this, and to know that will be fixed eventually... just looking v81 of Meta Horizon Link could it be a good idea, what changed on v83. I think that the problem it's not even on the headset nor the Meta Horizon Link app ... it's just Windows drivers for the USB Link that are not installed correctly and were deleted in some of the problems of install and uninstall processes of Meta Horizon Link App before the latest beta was available, and it got stuck on bad installations. My brother did not do ANYTHING in a long time, he just one day did the latest updates (non beta), and voila! all working without problem. My guess it's that are "things" that are not been installed on Windows (maybe drivers or register data) with the latest updates of Meta Horizon Link app.
Thanks!