Question about Apple Magic Trackpad 2022

Hi all, I'm a little confused - there are a total of 3 different trackpads available: - Magic Trackpad 2022 (139.-) - Magic Trackpad 2021 (109.-) - Magic Trackpad 2 (300.-) What the difference is to the first version, I can understand (oh visually) very well, but where is the difference in these three models? Thanks for the help!