I have a Samsung S21 and Forerunner 945 LTE. But it was the same before with a Samsung S8.
My Garmin connect all the time removes my device. So I do not have it connected to a phone.
When I add a device back, it is ok for about 1 week, and than it is all over again. CONECT removes my watch and I'm not connected via phone.
Does anyone know any advice?