I would like to see ClickUp show when a user on my team is logged in. This would be especially invaluable for chatting... nothing like trying to reach someone who turns out not to be logged in.
Statuses should be like chat/Slack, perhaps Active, Away, Do Not Disturb. If Away or Logged Out, perhaps the last active time should also be shown.
If it weren't for the guest square already on the icon, that would be a handy place to show whether the user is active and available. Another idea could be in the user's Profile.