Face ID settings are missing on my iPhone 15 Pro after iOS 18.3.2 update
Face ID is erratic after update to 18.3.2 and Face ID & Password settings is no longer available in the configuration options.
[Re-Titled by Moderator]
iPhone 15 Pro, iOS 18
You probably have Screen Time restrictions enabled which can cause the Face ID and Passcode menu to hide. Go to Settings > Screen Time > Content and Privacy Restrictions > Allow Changes > Passcode Changes > Allow.