The TV shows Dolby Vision when video changes, the only way I can sort of verify Atmos is enabled is the sound bar display will show ATMOS And it was stuttering in Netflix show with or without atmos, youtube no atmos or 4K 'yet', youtube tv no atmosVideo content with a highquality version that you purchased or rented A device capable of playing highquality video content See Mac models that support HDR video;But the new Apple TV doesn't support Atmos And it doesn't support in 4K HDR And it doesn't have Disney or Marvel movies in 4K HDR And it makes some 1080p content look less than great
Apple Tv Gains 4k Youtube Video Playback But Hdr And 60 Fps Still Missing 9to5mac