Apple Vision Pro is a standalone hardware device that has its own processors and does not require a connection to a Mac or an iPhone to operate, but it is able to interface with other Apple devices. With the Mac, for example, the Vision Pro can serve as a Mac display.
Apple says that there’s a Mac Virtual Display feature that works wirelessly with the Mac. You can bring your Mac’s display into Vision Pro and “place it anywhere in space.” You can see each of your Mac apps individually, arranging them in a way that works for you.
According to Apple, the Vision Pro is meant to serve as a “private, portable 4K display” when used with a Mac. Connecting is as simple as looking at a compatible Mac while wearing the Apple Vision headset.
Read more at MacRumors.com