Prior to iOS 14, one of the central problems with iOS (compared to Android) was that every single app you’ve ever downloaded has to exist somewhere on your home screen. You can have folders, you can have multiple home screens, but you can’t simply hide an app you don’t use very often.
The iOS 14 release changes all that. In addition to being able to put Widgets on your home screen, you can now remove apps without uninstalling them! A new top-level screen called the App Library contains all the apps installed on your iPhone. It’s a bit like the app drawer on most Android phones, but it looks and behaves differently.