Only 2 clients that I know of that can do Atmos sucsessfully is Nvidia Shield TV and running PlexHTPC on windows.
I can play Atmos and HDR no issues through PlexHTPC, can’t get Atmos to work with the plex app on my TV’s built in Android TV with the official app, no luck through chromecast or amazon TV Stick either.
Jesus… I watch his content and never realized he did weekly! That’s incredible with his quality of content.