So, from my reasearch, Infuse doesnt support Atmos for Airpod Max or any of Apple’s headphone line thru the AppleTV4k box. Infuse convert everything to “Mutlichannel”. (“Multichannel” is what the Control Center reads in tvOS17)

Is this something they are working on?

How much different does Atmos sound vs “Multichannel”?

Is there a difference in sound when the file is in Dolby Digital Plus 7.1 vs. DD+ 5.1 ? vs. TrueHD 7.1?