The default for the Confirmed/Submission sections is newest first, meaning the entries which were created the most recent and the ones which were confirmed the most recent. If we confirm a submission, it gets first place in the confirmed category. The link for the type I shared goes by most views (as shown in the url), which is the default for types. Search order can be altered, our protip section gives tips on that.
But wow, amazing how I never noticed that we don't have an alphabetical order. You can place them by newest/oldest, most/least favourites/views, and chronological creation date of the meme (not the entry). But alphabetical is merely an aesthetic issue, so something the coder should be able to add in a couple of minutes, so that ain't an issue.
The difference between mods and staff can be resolved by splitting them up in Categories and Types. Category for broad, Terms for smol. But we already confirmed that.
And to go back real quickly to things like Pepe you mentioned in your OP post, Pepe wouldn't fit in type and category. It's too small, so all pepe meme entries can just stay below the Pepe the Frog parent entry. We can then instead make a type or category of 4chan memes, throw pepes in there, and allow users to dig further if they are interested.