I'm very curious about the optical hand tracking as the main input. Yes, there's still a lot of progress in that area recently but the main problem remains: it gets really tiring to waive your hands around in front of you and there is no haptic feedback and very quick pressing of different buttons like on a controller.
It's an excellent choice for default controllers. Your hands are free to use keyboard and mouse, and your hands are also free for AR interactions in the real world.
If you need a controller (for games etc.), then there's always the possibility of using a 3rd party one.
