As you'll have noticed, Atmos isn't really an audio quality indicator (the way the Dolby Digital trademark was used). Atmos is really just a metadata stream for multidimensional audio panning so a single set of audio streams can be interpreted across many different surround setups.
Hypothetically you'll get a more accurate spatial response, but again as you noted, they tend to just do a surround background bed with a few Atmos objects for voices and explicit sources.
Hypothetically you'll get a more accurate spatial response, but again as you noted, they tend to just do a surround background bed with a few Atmos objects for voices and explicit sources.