Is 4k apple tv 3D compatible?

Is the new 4k apple tv 3D compatible. For instance i have a projector thats supposed to have full 3D. Its connected to my 4k atv and 3D mode is greyed out? Is this because atv isn’t compatible? Downloaded prime and says they have 3D films but will they not play via atv? Im confused, but i think i will find my answer if i can just find out if atv plays 3D!!

When searching Google for answers it says this

“Is 4k apple tv 3D compatible” (The trick is something that Apple kept hidden and did not let us get a hunch of until now. The new Apple TV has support for stereoscopic 3DTV content, which means that Apple's set-top box has the capability to show the 3D content like games and movies on supported TVs.)

so technically if this is correct my projector supports 3D so should work but im getting nothing?!

And what im confused about is if you read info for what the 4katv has to offer via purchase etc it mentions not 1 think about being 3D compatible, so does it or doesnt it 😩 anyway i hope i made some sense and ty in advance 🙂