AI-generated?

Either way, there seems to be an error in the block pushing table: chests and shulkers are immovable on Java, not Bedrock.

This is so sloppy. Did you even read it? Even disregarding where it’s incorrect, you should be able to catch this of you possess a brain:

When a slime or honey block is pushed or pulled, it attempts to drag every movable block it is directly adjacent to (face, edge, or corner — faces only in Java; faces only in Bedrock too, corners excluded in both).

Edit: here are some actual resources on piston mechanics and flying machines from people who know what they are talking about:

Piston Mechanics writeup by Space Walker

First video of a series explaining flying machines by Voiding

Great resource; thanks for sharing!