Minecraft wiki entry for Parity_issue_list, associated text: Riding is different:
Less instant in turning.
The pig has to jump to get on blocks, rather than just step up like horses.
Using a carrot on a stick makes the pig boost very obviously, along with a sound effect, and only reduces the durability of the carrot on a stick by one.
The pig does not look up and down with the player, unlike in Java Edition.
Have mirrored leg textures.