i cant answer your question, but i might be able to help you with a better solution for your mic while streaming. i just bought a wireless microphone that wraps around the back of my neck and plugged the receiver into the pc. I will say though, if you dont use a program to set the mic to Mono, the audio will only be in the left ear. But, i use Voicemeeter Banana anyways for my regular mic so selected the mono button and the mic works fine then.
this is the wireless mic i got: https://www.amazon.com/gp/product/B0814PFYYX/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1
it honestly doesnt sound too much better than the built in quest 2 mic, but it's wireless so you dont have to worry about running a second wire off your quest 2