But there are other times for that, why in a meeting? I chitchat during day 1-1 (virtual/irl) with my teammates, I don't, for etiquette, have to do it again when starting a meeting.
If you're in-person in an office, there are plenty of times for random social interaction. If you're full-remote, pre-meeting/post-meeting time is a low-friction source of social interaction.