If you want to see Mastodon at its best, strongly recommend these options:
:android: Android - Use apps Tusky or Fedilab
:apple_inc: iPhone/iPad - Use apps Metatext or Toot!
? Computers - Log in through your server's website
Mastodon was designed for websites and third party apps. These are *still* the best ways to use Mastodon!
(Official app exists because new people were only looking for an official app in app stores, and giving up when they didn't find one. You don't need to use it!)