I've had a work iPhone 7 for years now and I'm still entirely confused by its UI due entirely to inconsistency. Where are my apps? Certainly not organized in a handy alphabetical app drawer, they're just randomly arrayed over multiple home screens in whatever order they were installed in, requiring effort to organize and then memorize where every single one is, or requiring search using the keyboard (slower particularly when you don't quite remember the name of the app).

The fact that I can never figure out in any given app how the back button is supposed to work (is it in the taskbar? or at the top of the screen? or am I supposed to swipe from the left?) or where the settings can be (sometimes in the app, sometimes in the Settings app) is deeply confusing.

Sometimes when the keyboard is up, swiping down from the top closes it, sometimes it scrolls. I find that I genuinely have no idea what's going to happen whenever I tap anywhere. The keyboard decides to just change words using autocorrect far more aggressively than my SwiftKey on Android.

Maybe one day I'll learn how to use iOS, but I know that it's definitely not "strikingly consistent".