When I keep Spotify playing on the side with say 30% volume and open Zoom settings -> Audio, there is a pause in the playback and then the audio playing via Spotify becomes barely audible. The loudness drops drastically (despite keeping 100% volume) only on Zoom calls or Zoom audio settings. 100% volume on Zoom feels like 20% or less in other apps. The mic output seems fine though. I'm noticing a similar issue with my older Airpods Pro gen 1 headphones as well.