If it can be used with external - non-guest users - this would be great. Otherwise I need to keep using Zoom.

please make this happen. The scheduling feature doesn't even notify my teammembers in ClickUp, when i request a meeting, but only via e-mail. If you want people to stay in ClickUp, this is vital

This would also be awesome for us if it can be used as a replacement for Google Meet, Zoom, etc. for meetings with external users as well!

I would love to use SyncUp for scheduled meetings like 1:1 or regular team syncs without using google calendars or outlook (so for example if I don't use any other calendars), only clickup calendar