If you take a Shulker Box and place it at Head level facing towards your characters face and use blocks like (Barrier Blocks) Then click it and walk backwards it causes it to glitch through the wall. I do not have a file to drop but I can add a link of the file. You can also do this glitch on all versions of Bedrock Edition (Xbox, PS, PE, W10 Edition, etc.) And on Survival and Creative. Link: https://twitter.com/dylanb493/status/1375606432926687237?s=21