I've realized that my problem with voice calls on computers really does come down to how large the group call is.

Group size of two or three? Great! Will chirp and squeak.
Four? Limited chirping but still engaged.
Five? I'm staying muted unless I'm directly asked a question.
Six or more? Non-zero chance that I've muted the audio and considering dropping out of the call.

@Melody I’m very much the same. I don’t do well with feeling like I have to fight for a time slice in conversation.
@pepper It's extremely unfun and unconducive for any real chatting, especially when one can't be sure how much delay they've got.