[w0utert]

Sure, but why does the Xbox One support it then, but not the PS5? And wouldn't it be possible to somehow incorporate the licensing cost in the console by means of a paid software upgrade (like on Windows) or a 'premium' version of the console that has it by default?

As far as I know Dolby Atmos can be seamlessly mapped onto to 5.1 or 7.1, so from the developer perspective there should be no effort/cost to provide Dolby Atmos audio. I might be wrong about this but I assume the licensing cost would be for the playback device and not for the 'right' to bundle an Atmos audio track with your game?