I dont think the Discord game overlay is relevant since most of my troubles have happened without running any games. Though our issues arent identical since we have different headphones and have run into issues in different situations, so it could be whats causing issues for you, idk about mine though.
I feel like it has something to do with the laptop’s ability to recognize newly plugged in audio devices, since during times that mines been acting up, it doesnt show up in the discord options or my Devices in settings. Really hard to say though, I might go to support on this, just really dont want to have to ship the laptop out or anything.