How to Completely Ignore Real-World Movement in WebXR (VR Mode)

I’m trying to prevent the user’s real-world movement from affecting the VR scene in WebXR while still allowing them to look around. No matter what I try, when the user physically moves in their room, their position updates in the VR world.

WebXR has a special space mode called ‘viewer’.

However, i guess if you need to switch modes (e.g., move first, then stand still, then move again), you can update the position to the required state on each frame.