Ok, so you have a MBP and you want to be able to change audio outputs without using software?
That's easy, if I understand your question.
So right now I have 5 Apple TV's in my house. Let's say I'm in the kitchen listening to music via my MBP internal speakers, and decide to so into the living room and want to continue listening to my music on the tv in the living room. Just click on the sound icon in the upper right of your screen and select that Apple TV:
Now I can also do the same thing with my Airpods Pro, or any other bluetooth speaker, but that bluetooth device must be on and must have been connected to my MBP in the past. Once it's powered on, click on the sound icon again and choose that output device.