An iphone and a laptop are both just 2d screens with input, the difference is one of just screen size and primary form of input. The Vision pro is an entirely different category of device. Both the form and nature of the display and controls are vastly different.

The vision pro is a superset of a laptop but the reverse is not even close. If I'm building an AR or VR tool, I should be doing so in a 3d AR environment, anything else is obviously a substandard experience, removing options and fidelity for no gain.