No sync possible
Not sure if this is related, but I believe Garmin Connect is not working correctly across platforms now. I cannot, for example, change any of the settings on my Fenix 6 through GC on my iPhone, or on the web. It tells me "network error" in the app, and on the web, it tells me it cannot display the page. I have two other Garmin wearables (FR 945, Venue); they have the same problem.
I found this out when trying to change the "preferred tracker" option. I'm on hold to speak with them at this moment.