I'm considering updating my iPhone XR to iOS 18+. However, it seems that Apple has granularized security to the point where FaceID controls access on an app by app basis. I really don't want to deal with security that way. I have access set up with a passcode and that's it because my phone is just a phone. I don't put my whole life on it. I have no financial or shopping apps on it and I have never set up Apple Pay.
So, can I update to iOS18+ and still just use my PIN/passcode or will I be forced into FaceID?