Me and my workmates left a request at Create for Apple visionOS , but we didn’t get any sdk or anything. I understand that only a small number of people have received this SDK, but is there any way to start developing applications/games for Apple Vision Pro without this sdk, followed by the opportunity to test the application in Xcode Vision os simulator? What is included in this sdk, some examples or something critical for working with Vision Pro?
Just gotta wait for now.
Apple has some documentation on development and the APIs that you can use
We don’t have anything to add other than the official answer right now: Unity support for visionOS: What you need to know
Well, yet this does not answer the question raised 
@andrjushovnikita6 the best answer to your question so far from a member of the PolySpatial dev team in another thread: