Tbh. I love my Samsung buds. I don’t understand people complaining about the hassle of wireless. It is the wires that are always a hassle imo. My earbuds just pop out the case and are ready.

Yes. But America wants their blue message balloons. How else do you know who you need to ignore? /s

Can I opt out for all the users in my library?

Doesn’t even need to be Synology. Plenty of solutions that can be installed on your own “open” hardware (old PC, mini PC or just a more powerful server)