All you’re gonna find here is blind defence of Sync. I used it for Reddit and it was amazing, but honestly, the Lemmy app isn’t worth it. Voyager is great if you’re looking for an alternative. It’s free and it’s maintained with updates almost every week.
Recently did this and yes it’s a pain. I don’t know if it’s going to help until next time we change phones, but what I did this time was name the device after the person, rather than the phone model.
The idea being that I can delete the old device in the future and replace it with the new device, named the same. That way I don’t have to change the device name in each automation every time. Hopefully that made sense. But I still haven’t tested it in reality.