I have a Garmin edge 840 and a Apple Watch Ultra. I know that currently this is a not supported featured by Garmin Connect but it could make the Garmin Edge rocking on top again.
As many people already posted about this topic, why this one is different? Well, people have been focusing on getting the data out of Garmin Devices into Apple Watch immediately. This is not the point of this question. The question is that more and more watches support the cellular feature, and this is a great feature when riding my bike so I avoid b with the iPhone on the back and in case of emergencies handle it via the watch.
My point here is that if there is any possibility of making the cellular data of the watchOS being used by the garmin edge to have the group rides and the beacon available.
Best regards,
Bruno