A: Hello David, currently only Google Calendar, but it is in the immediate roadmap, and I can already commit that it will be live in the next 6 weeks or so.
We did a full refactor of Google Calendar, and introduced the abstraction layer just to be able to support better other calendars. Already live.
We launched our IOS app, and currently keeping available for any potential glitches. We will move to Outlook and Teams integration right after.