Is arch an easy distro to use?

Nope, it's not very user-friendly but a great distro otherwise (and that's why there are so many others based on arch which aim to be more user-friendly)

Edit: i suggest Linux Mint or Cachy, if you don't like them i suggest to also try this quiz: https://beta.distrochooser.de/en

It's ofc not perfect but it suggested me some distroes that i actually do like so maybe it can work? Some people also told me that they were suggested distroes they like so it could work i guess

is smth an acronym?

It's a shorthand for "something"