Using my Oculus Rift headset, I can move my head to "poke" it into a wall for a quick & easy X-Ray of all open areas, much like the "cave finder" tool with the X-Ray mod in Java. The ViveCraft version can detect when your eyes are clipped inside a solid block, so it will clamp any output to that eye. You might JUST be able to XRay in ViveCraft, but they make a good-faith effort to prevent this cheat. For Bedrock, my VR headset makes this cheat easy-peasy, and it shouldn't.

Again, to confirm, put your VR headset on and shove your head into a solid wall in a cave. You see ALL the things!