One of the first things I noticed when I loaded Big Sur was that when I connect my Airpods, the bluetooth icon doesn't change to show connected but the sound icon does. At first I thought this was a bug, and even reported it via the feedback tool, but here we are at beta 5 and it's still behaving the same way so I'm assuming that's the way it's going to be now. Since I see the sound icon change I know if I'm connected or not, which is fine, but it makes me wonder about other bluetooth devices that aren't related to sound. Seems strange for Apple to have changed this behavior.