WebCord is an “alternative client” for Discord, although it’s just running the Discord webpage in electron. Recently it updated its electron version so it supports sharing audio as well as video.
I tried it out today on mint (x11, pulseaudio) and it works flawlessly.
Nicee. Although, I’ve been having trouble running webcord. I get some decryptkey message error. It might have to do with my keys in my kde wallet. I have absolutely no idea how to fix it.