It would have been nice if Meta had listed a couple of capture cards that are known to work with this. Very few of them list UVC and UAC explicitly (unless these terms just mean 'captures audio and video').
The Meta Quest HDMI Link app will allow owners of select Meta Quest headsets to use their devices as a display for devices with HDMI or DisplayPort output such as consoles, phones, and laptops. However, users will also need extra hardware to get it running.