I've got a Samsung A22 5G phone, and can connect it to my Ford Sync no problem, and it automatically connects when I get in the car.
I've now also got a Samsung Galaxy watch4 classic. Since linking the watch to the phone, the phone won't link automatically to my Ford Sync. The only way I've found to connect is to delete the connection and resync.
A limitation of the Bluetooth adaptor in the phone maybe restricting it's pairing capacity to one device at a time? You should open a ticket with Samsung as they may be able to fix the issue in an updated ROM in the future
I first tried customer support who advised no android phones allow multiple Bluetooth connections, which I know isn't accurate since my previous Honor Play phone was capable of doing it.
I've left a question on the technical support area.
All of a sudden my a225g only connect to my car when it wants to. I have to keep putting it in .manually. can any one help. It was working fine for 8 months.