My point is many developer will find some unique ways to find some new applications of hand tracking combined with other things. Apple will provide hand tracki

My point is many developer will find some unique ways to find some new applications of hand tracking combined with other things. Apple will provide hand tracking data for visionOS in latest ARKit - I watched the WWDC session. Even currently if you play Nintendo switch nothing stops users to hold left joycon in right hand - you still have to do onboarding. But with hand tracking and motion sensor data it's very easy to detect which hand holds which device with some onboarding/tutorial. Sure you don't get it out of the box but there were lots of cases for iphone where people used many workaround and tricks to implement feature that was not there. Flashlight Apps in first gen phones using screen comes to mind. I believe you can even support PS Move with 3rd party SDL library (official apple game controllers API support only MFI controllers + xbox one controller + PS4/5 controllers and Switch Joycons (both left and right)