Apple has given us Atmos through streaming, but that is a compressed version of what UHD BluRay provides. Apps like Infuse give users option to play our BluRay collection on AppleTV, which is great - However, AppleTV will not decode lossless Atmos TrueHD or DTS-X like Android and Xbox streaming devices. Blu-ray player Audio and Video quality is possible if Apple would give us the option, I would happily stay in AppleTV ecosystem for all my video consumption - and gladly upgrade my TVOS devices for this option - if you feel the same Infuse has started a change.org petition for Atmos TrueHD - https://chng.it/56SMZ2gSvf
It’s never going to happen…I’ve come to terms with this and purchased a zidoo box for the sole purpose of watching my blu ray rips. I purchased my first Apple TV 3 years ago and it’s always the same thing with people wanting passthrough capabilities. Apple does not want us to have it and that’s the way it is. Regardless of a petition. The purpose of the Apple TV is streaming purchased content and if we can stream our own at its full capacity then they lose money on rentals and purchased content.