Just updated my iPhone 16 Pro Max from 18.0.1 as i've have had all sorts of issues with my 16, from keyboard lag, phone restarting, resprings and of course the camera button crashing and freezing the camera app. After about 30 minutes after installing the update and activating Apple Intelligence the phone is running smooth as butter like an iPhone should! In my opinion iOS 18 has been the worst iOS update to date as its been full of bugs and 18.1 now finally feels polished and what iOS should feel like.