Unity XR Stack overview For VR (Quest, PCVR, Vision OS) → XRI 3.x + OpenXR plug-in. For AR (mobile) → AR Foundation + ARKit/ARCore providers. Mixed Reality on Quest 3 → AR Foundation features (passthrough, anchors) work on top of OpenXR. XRI 3.x — interactors and interactables Use the in the scene; both interactors and interactables register with it. Locomotion XRI provides: - Continuous Move + Continuous Turn — comfort options (snap turn, vignette). - Teleport — TeleportationProvider + TeleportationArea/Anchor. - Climb — ClimbProvider + ClimbInteractable. Always offer multiple comfort option…