Yes, i am using the AirPods Pro and the settings are enabled to play back 3D Audio. With the iOS Apple TV App it works fine and i can playback e.g. "Greyhound" in fully surround audio with head tracking.
But when i play back an own .mp4 or .mov Video with 5.1 Sound (6 discrete Audio Channels) it doesn't work and i only hear the sound as stereo without any head tracking.
I got the info that it might be because the video needs to be specially encoded for 3D audio.
Do you have an idea?