With some of the iPhone versions being the most expensive phone in the world by a large margin, especially outside the States, I think it's fair to be upset about small issues.
There are people upgrading in order to finally have that always-on display that's been around with Android for a long time only to find out it turns off at night, thus preventing them from using it as a nightstand clock. Others have found restoring their 1TB backup takes 12 hours because Apple couldn't be bothered to use the same USB 3.0 lightning connector they had in iPads years ago in a 2022 flagship device. And forget shooting ProRes 4k video like Apple did in their advertising, when you do run out after a couple hours it will be another 12 hours yet again to move the data to your editing workstation.
Syncing music via iTunes is worse than ever before, a perfectly tagged and playlist-ed library will get garbled up for no apparent reason...
I see a lot of prior iPhone owners having trouble.
Was I just lucky?
Perhaps you just don't use the same or many of the iPhone's features? Just getting media on and off a bigger capacity iPhone is harder than it needs to be for no good reason. People keep complaining about similar or even precisely the same issues again every year, and Apple doesn't fix them. Sure it will do calls and texting and taking great photos just fine, but if that was enough I could just use my Pixel as a daily driver (and I do prefer the Pixels for many applications, such as launching a true Chrome or Firefox with all my plugins instead of a Safari with a Chrome/Firefox skin on top of it).
I lately had to assist an older family member remotely with their iOS device and we ended up with a Facetime call to troubleshoot things. I checked beforehand that Facetime is explicitely what Apple recommends for this and apparently it's also the only way to access a remote iOS device - so we did it the Apple way. Except it wouldn't let me control the screen, I couldn't find the button. Turns out the way Apple imagines remote assistance is that I can only see the screen with no way to interact with it. One of a few tasks was to enter a password and since it was a random one from a password manager I ended up having to sync an encrypted text file and then I had to guide them how to enable split screen and open the file on one side and the service login on the other (it didn't allow copy-paste). Then I had to make sure they enter _ instead of - and so on. What could have taken a couple minutes on any other device turned into an hour long support session...
Point is, people like to do things different ways, and with Apple your only choice is the Apple way, and if that doesn't work so well all the Apple Silicon "up to 2x" performance charts won't change the fact that you paid 1.5k for something that has shortcomings, minor one such as the AOD not being always on, but often things Apple explicitely advertised in a different way.
It's especially frustrating when even their own support doesn't know how their hardware is supposed to work. I want to sell my current iPhone until the new one arrives, but on an Apple support call yesterday they couldn't tell me if Apple Pay will still work on the watch until my new iPhone arrives in November. Apple support seriously expects me to just walk into a store and "give it a go" when I dropped a couple grand on Apple hardware just this month alone. They can't try it out for me either, they have their support script and if the answer isn't in there they just can't be bothered.