You should add a component that tracks your head in the browser and then re-renders the perspective. Should be fairly easy and would make it a lot more immersive.
Did you record those videos holding the camera in your hand? Because they have a shake to it that does not correspond to my heqd movement.
So if anyone wants to try it in the headset be sure that you are not nauseated by movements that don't correspond to you own head
I'd just have to figure out how to get that into GodotEngine and without killing the performance.