That’s pretty much what I do. Refresh the calendar is dependent on Garmin Connect having the ride uploaded from the head unit, and then it transferring to TR via RideConnect.
When the ridden workout shows on the web calendar I’ve had a few times where I need to associate the outdoor ride with the workout because TR doesn’t always do that automatically. That comes after “refresh the calendar.”
Also works the same way if it is an unstructured workout that you know it pretty close to a TR workout.