There is a lot more involved than you think.
Body tracking is done between the Hands and Head, Direction is controlled relative to the hand.
The reason you didn't hear much about me 2 years ago when I started this locomotion system is because not having Hand Tracking made the whole thing incredibly weak.
Hand tracking is Necessary... I do not use head direction for movement, I Never did, not even before I had hand tracking.
To understand more, see my latest videos on VR Physics: