I’ve always thought the most easy cost effective way to move around in VR is a headset and a normal computer chair with a tracking solution for the chair. That way you can spin around on the chair and move your head around.
Ideally would need a wireless setup to prevent getting wrapped up though.
TLDR We just need to make an app to send the gyro info from say a phone into hifi to adjust avatar orientation. Probably need some code to account for drift but we could correct it with a bias to the orientation of the HMD.