Joining, leaving, muting, deafening, push to talk and going live each have a sound, with a switch for each in Notifications › Call sounds. Pop out puts a room’s stream in its own window, and a small player follows you while you read other channels. On your side only, you can turn off one person’s video or their soundboard.
Streamer Mode now shows a bar with a way to turn it off, can have its own key, masks your own handle, and hides invite links and the addresses of your signed-in sessions. A call ringing while it is on shows no caller and plays no sound.