Is music playing in the background of runs allowed? My duo and I wanna know if we can run with music for some morale lol

I don't see why that would be an issue as long as game audio is clear, you could also tell OBS to only record the game audio and not whatever browser / program you use for music.

Was thinking of streaming it through discord so it would wipe our commentary that is absolutely necessary XD (Alr sick tho, gonna def do some more runs now just vibing)

As TurtleDSR said, music is allowed as long as it doesn't promote hate speech and the game audio is still audible.

Only if its techno hardcore