with update to 17.3
Face ID & Passcode does not appear in settings in my Iphone 12 mini
iPhone 12 mini, iOS 17
Face ID & Passcode does not appear in settings in my Iphone 12 mini
iPhone 12 mini, iOS 17
Settings > Screen Time > Content & Privacy Restrictions > Passcode Change [Allow]
See the pic below
iOS updates generally aim to enhance user experience, boost security, and fix bugs rather than disrupt core features. Face ID issues after updates might stem from underlying, unmentioned factors. Updates won't typically alter personal data but may refine settings or features. Backup before major updates for safety. Review Apple's update details and backup advice for a smooth process.
This seems purely coincidental so please check the Setting on your device.

See what each update does: About iOS 17 Updates, About iOS 16 Updates, About iOS 15 Updates, About iOS 14 Updates, About iOS 13 Updates, About iOS 12 Updates, and so on...
with update to 17.3