Haven't checked yet, but I assume that we can't see the activity on Strava either. Just bought a premium Strava for a year to see the segment that Garmin can't fix. Doubt there is much of a support staff working today with the Super Bowl starting soon.
I just synced with mobile and it worked normally. Then I went to Connect on the web and none of the widgets showed. Then I saw the status page. I never would have that based on the way it synced so easily.
Initiating a sync via the watch comes up with "Transfer Successful". Initiating an auto-sync via the app also appears to be successful, however, no updated data shows up on either the app or the GC website due to the fact that it's all down. I wonder if all that data is lost now...