The way Apple organizes the Apps in the App library is not how I want them organized, most of it is illogical.
I do not know if I am correct about this, but I do not believe Apple organizes them. Developers add meta tags to their apps to determine how they are grouped. At least, I’m confident developers add such tags, and I believe that they are used in both App Store organization and in App Library organization.
App Libeary exists because of the new home screen widgets. Apple thinks most of its users are too dumb or lazy to make their own folders of apps so they created the automatic App Library for them. It's not like anyone has to use it.
I’ve been pondering all this this morning, and I think the reasoning comes into focus for me. I agree that it has to do with home screen widgets:
So, we’ve already had the exact same functionality: Spotlight search. I can swipe down anywhere on my home screen(s) except the very top, and search for any app. This is half of what App Library does.
Redundant functionality isn’t a bad thing, and I’m sure that there are plenty of users that don’t think to use Spotlight. But it occurred to me that a mid-screen swipe may no longer be reliable, because of home screen widgets! I can now stack home screen widgets, and I swipe up and down on the stack to switch between them. And even without a stack perhaps there are swipe interactions with individual widgets. That means that potentially there are areas on your home screen(s) where invoking Spotlight doesn’t work (and worse, does something completely unrelated)!
It's only valuable if you are the one who decides where things go. Besides, what does it provides that folders don't
Well it’s never going to be exactly how everyone wants it, you can create folders and arrange the apps anyway you want on pages.
Bingo. For those who want things organized just how they like them, they can already do that and can keep on doing so. Perhaps for some users that is a mountain and not a molehill and they’d rather not take the time. For them this is a nice thing Apple has done for them to do some heavy lifting.
One thing I’d like to see is the ability to eliminate the folder portion altogether, just turn it off. Keep the alpha listing with the search bar so that search is reliably available to me no matter how many home screen widgets I’m using. Another is smarter organization. See my note above, perhaps Apple does not (yet) play a big role here. In any case I can expect it to improve over time. It’s meta data, it can improve.
App library may not make sense on iOS 13, but perhaps this makes more sense in this new world.