You have to run the macOS app on the computer side, and then enter the ipAddress on the Vision Pro. It is to share the screen from the mac to the Vision Pro.

Install this app on your mac and on your Vision Pro. This app will be a menubar app. Enter your ip address on your vision pro, give the mac app permissions to screen record. Now you will be able to see you mac screens inside of apple vision pro.

Works best with 2 or more screens.