Any way to trigger an automation when a new calendar event is added from Google Calendar?

[JoeMcFadden]

Hello,
I'd trying to trigger an automation based on Google Calendar datasource, when a new calendar invite is added to a shared google calendar. The invite is being added from Calendly - the action I want to trigger is to copy the google calendar invite to another AppSheet table.

To give more context, the use-case I'm trying to build is as follows:

1. External clients (who are not Appsheet users) can book themselves into an onboarding call with a coach via Calendly (free version for now) 
2. Calendly creates the Google Calendar invite in a shared team google calendar.
3. coaches can see new these new bookings in AppSheet, and in a form assign themselves to the invites for the calls they will be handling.  
4. Arvi Onboarding is name of the table for the connected Google Calendar, which I've setup by following the official help article here.

Below is a screenshot of the automation I've tried to look for new records on this table, but it is never triggered.

I tried tackling it this way first, as I already have another AppSheet table (Appointments) set up, has other static data fields about the event I can't store in the Google Calendar table, so my thought was to copy the new inbound google calendar invite across so other workflows and actions could work as before, then write it back when a coach assigns themselves to a call (just updating Attendees).

After now reading a few recent posts related to this topic, I suspect I'm probably going about this the wrong way. A couple of answers by @Steve make clear that 'there is no way AppSheet can notice that changes have been made to a Google Calendar data source from outside the app'. From this, I assume that data change automations simply don't work on a Google Calendar data source? 

I've just started to look at some other guides for integrating Google Calendar, including this video from AppSheet training. So just wanted to ask if this kind of approach would be the way to handle my use-case, or are there other options to consider?