How to test my world in VR

I am about ready to publish my world using Worlds Desktop Editor but I want to test my world in VR first. The "Switch to VR" button in the desktop editor doesn't seem to do anything. I can see the world when I'm in my Meta Quest, but when I try to preview it, it's just an empty void with nothing in it. I suspect none of the assets are loading for some reason. The headset editor appears to be deprecated now. There must be a way to test it with my headset before publishing, how can I do this? Maybe I just don't know how to use the "Switch to VR" button. (I've connected my headset to my desktop as well with no luck...)