My impression
tldr/cheat: Explains most popular arguments using as little words as possible
man: Explains the entire command using a more technical tone
info: Explains the entire command in slightly more informal tone. Can feel wordier as a result, but on the flipside it connects alternative/related commands in a logical way
My limited understanding is that ARM usually is a lower priority for devs and so software is often harder to come by?
My personal hope is that people start to turn used desktops/laptops into servers.