List of questions about OpenXR tracking in Unity:

1. How do I get the 3D coordinates of the helmet inside the game zone, i.e. calculate where it is on this plane?
2. How do I calculate the distance to all four walls of the game zone, or to the wall the helmet is facing?
3. What is the accuracy and frequency of coordinate measurement?
4. How to get the coordinates of the controllers within the game zone.
5. How to get the coordinates of the controllers relative to the helmet.
6. I threw the controller in the corner of the game zone and turned away, i.e. it is no longer in the line of sight of the helmet cameras, what happens to the coordinates of the controller?

Thank you!