To add on, it supports up to 20.1.10 and that is where the protocol may shine. However, full spacial sound is not new, and Atmos is just Sony’s proprietary version.

I stole the “sound stick” bit from Benn Jordans blunt overview on atmos: https://youtu.be/5Dw3aKbw5Wo

(Atmos is all caps as well? Meh, whatever.)