I haven't had any issues with it so far for the 14+, even though I do think Apple needs to rethink how they do notifications (Why not have an icon at the top of the phone) because I'm finding that part kind of hard to navigate. I said not sure, though, because this question leads me to think maybe I should have issues with 16.1, even though I probably won't use all the features it has to offer.
Also, I wish there was a way to not have auto-lock on when you're driving, but when you aren't it can automatically turn back on. My Car Play crashes so I decided to go the route of a car mount (Honda Accord 2017) but when I'm not driving I forget to turn the phone off. We should have like a smart behavior focus in 2022 or something. Maybe if there is anyone else who has gone the route of car mounts (Uber/Lyft Drivers?) you can give me advice on how to handle this slight annoyance.