Like there is the Official Mastodon app for Mastodon, and Element app for Matrix, which app is considered the most official lemmy app for Android [possibly also for ios]
Or atleast, the app which supports most(if not all) the features available in Lemmy
Yeah the post is an interesting question because the “official” app isn’t as polished as you might expect it to be.
Lemmy apps are interesting in that they are all so different that you need to just try a few and find one you like.
Me personally, I like Sync, but I’ve also tried Thunder, Jerboa, and Liftoff. Each has their pros and cons, and you’ve just got to try them out and can’t really rely on “most official” as a good metric