From the trailer it looks like an interesting concept, unfortunately I couldn't get it to work on my headset. I spawned into the world but I couldn't move my hands and as others have said already, the UI and everything was behind me which was very awkward.
Viewing post in The Gridd jam comments
Are you using an Oculus headset? If so, I didn’t build it to support Oculus, as Facebook is trying to build the metaverse as well. But if you load it up without a headset, you can still use it with a more limited experience (WASD to move, Q and E to turn, shift to jump, but no ability to really move the view much, so typing in the browser window is limited).