Just updated my Quest Link software this morning, and I no longer have audio or microphone. Ive restarted both my computer and Quest multiple times, tried messing with Sound settings on PC, its like it doesn't even recognize the device as audio input/output anymore.
Nevermind, it was a PC driver issue. If this happens to you, go to devices and hardware, and look for a < ! > on your Pc device. click on it to open it up. there should be a driver called "virtual Audio device" that's giving you problems.