You must log in or # to comment.
When carried over a Dolby Digital Plus carrier signal - yes. Does NOT support it over Dolby True HD like UHD Blu-ray Discs use.
Yes
What model TV do you have?
What sound system do you have?
It supports Dolby Atmos in the Dolby Digital Plus format (which is what all streamers such as Netflix/Disney+/etc. uses).
It does not support the height metadata of Dolby Atmos using TrueHD (such as from blu-rays) but you can still play those tracks as 7.1 surround, just without the height speakers. Typically, I would recommend the Infuse app, which handles all the high definition audio formats really well.
Yes the Apple TV app does.