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".
All I see is "Siri Suggestions", no alpha list.
I guess you'll need to be on the last home screen... I only have 1 since this feature was introduced.