We have been made aware of a macOS issue that can cause Atmos playback from Apple music to only play in 5.1 rather than the full 7.1.4 immersive format despite the settings in Apple Music being set correctly.
To resolve this, go to the macOS Audio settings and set your sound output device to a different 16-channel audio device, such as the 'Pro Tools 16ch Bridge' or something such as 'BlackHole Audio 16ch' if you have this installed.
Then you can change your audio device back to the Audient ORIA and you should now have playback in the correct 7.1.4 format.
Please note that you must be using macOS 12 or later to playback Atmos audio from Apple Music.