VR floor is not aligned to the real floor

Why are there no good VR tutorials or articles that show you how to align the floors?
I’ve tried all the hacks - moving the camera, moving the origin, setting floor height to 0, enable HMD.

Apparently these problems have been around for about a decade and I can’t find any progress on it anywhere.

What is the correct way to put on the headset as a character (not a pawn) and the floors line up with oculus quest 2?