iOS has a number of really annoying behaviors and general flaws that are never going to be addressed. I don't recall having the same frustrations with Android, but maybe I did.
I'm constantly annoyed that my iPhone can't do simple stuff my Android phone could do 15 years ago. I am also aware that if it could do all those things, I probably wouldn't spend the time to get everything set up, dialed in, and maintained anyway.
The things that keep me on iPhone are unrelated to all of that, though.
1. I like the small form factor. I have a 13 Mini and there's no decent equivalent that I've found in any ecosystem (sadly, even Apple now).
2. I use Facetime with both sets of parents a fair bit. Trying to train them to use whatever app Google currently uses for video calls, and then retraining every time Google kills it off for another almost identical app, sounds like a lot of work and frustration.
3. Real or not, my perception is that privacy in the Apple ecosystem has historically been, and currently is, far better than Google. I don't like the idea of the device I'm constantly relying on to be the product of an ad company, it just feels gross.
4. Proper unlock with FaceID is so damn convenient. I don't know for sure, but suspect going back to a fingerprint would really bug me.