To each their own. I switched to an iPhone early this year after always having used Android before, and I won't be buying another one. Apple nails the big picture stuff, but they have really dropped the ball on some of the details in their UX. Just a few arbitrary gripes off the top of my head:
* The Clock app doesn't let you set a snooze length? Seriously?!
* Not having a notification LED or some other indicator really sucks. I might set my phone on the counter while I'm doing other things, and with Android, it was nice to be able to look up and see if I've gotten something without walking up to the phone and checking. (I know Apple will likely never implement this because it's a great pitch for their watch.)
* Face ID is slow and inconsistent compared to a fingerprint reader (especially during COVID), and I'm bummed that Apple ditched the latter. It works well about 80% of the time, and the other 20% I'm that crazy-looking person that's making faces at his phone trying to get it to unlock.
* If you had any sort of media app open previously and then connect some Bluetooth headphones, the media controls for that app open up and take up most of the lock screen, and there is no way to swipe them away; you have to kill the app to get them to disappear.
* I miss the inline notification controls. On Android, apps can give their notifications extra buttons, so you can do things like delete an email right from the notifications bar without having to open the app.
* My friend and I regularly send each other voice memos. First of all, the built-in voice memo feature in iMessage is atrocious (no seek and you have to restart from the beginning if you leave the screen), so we use the Voice Memos app to send each other audio files. Except, when you play an audio file inline through either iMessage or Mail, the screen will still turn off and lock, which pauses the file. You have to save it to Files, then open it via the Files app to ensure that it continues playing in the background. How are you supposed to know this?!
* If your iCloud storage is close to full, Apple will continually notify you every few days via your phone and email, and there is no way to disable these notifications.
* Needing a special charger sucks. Everything else I own is either USB-C or microUSB at this point, but my iPhone needs its own charging cable that nothing else uses.
* All of the special treatment that only Apple's apps get is frustrating. For instance, why does only Apple's Clock app get a special timer UX on the lock screen, and everyone else's has to use a notification? Why does only Safari support ad blockers? And why is the camera button on the lock screen limited to the built-in Camera app? They really push their own apps with these artificial benefits, which detracts from the plethora of apps in the App Store.
* Syncing files (in both directions) without iCloud is a pain, and I'm not going to pay for an iCloud subscription. There are lots of different ways to achieve this, but none of them are as easy as simply using SyncThing on Android.
Even though Android is lacking in certain areas, I find the UX to be a lot more consistent than that of iOS, and I would take the consistency and flexibility of Android over all of Apple's corner cases and attempts to predict how I will use my device. But again, that's my personal preference, and to each their own.
(Sorry, this turned out to be much longer than I expected. I guess I'm more frustrated by iOS than I realized!)