I’m not choosing the phrasing. MacRumors even calls it Dolby Audio Spatial Audio.I’m certainly not confused ….. however you want to phrase it spatial audio is completely different on AP2 compared to AP3, pro and Max ……
How to Enable Dolby Atmos Spatial Audio and Apple Lossless on HomePod
Apple's HomePod (first- and second-generation) and HomePod mini feature support for Apple Music's Lossless Audio and Dolby Atmos Spatial...
www.macrumors.com
Apple decided to have awkward phrasing.
On AP3s you have to enable “apple’s spatial audio” to use Atmos spatial audio.. on AP2s Atmos tracks automatically play.. spatially(?)