Just adding to the general consensus here that there is something very wrong with iOS 17. I have a brand new iPhone 15 (actually, I am on my third one, specifically because I keep encountering issues that so far have not been resolved). My main complaint is that the audio quality on phone calls is terrible -- it's just totally distorting what the other person sounds like. My guess is that some "voice isolation" function is running not just once, but 2 or 5 or 10 times, resulting in the sound sounding like a "copy of a copy of a copy." Many others have noted this, but I just have to make the same point: why is Apple spending so much development and marketing effort on adding 10 more cameras and ability to shoot 3D video or whatever, and not making sure that the iPhone can function as a phone? I have reported this issue to Apple multiple times via their feedback/bug fix form, to no avail.
Another issue I've had: normally, when my alarm goes off in the morning, I tap it to snooze it for a bit, or swipe left to clear it and get up. Now, when I swipe left, the alarm just . . . snoozes for a bit and then goes off again. This is not a user-error/drowsiness issue; I've tested it while very much awake and specifically looking for this issue. This is tons of fun when I have swiped to clear the alarm and then it goes off while I am in the shower. Great work, everyone.