My wife’s Face ID is currently refusing to recognise her, so I went to check her settings. Imagine my surprise when I could not find them anywhere. A search for Face ID only returned the four or so entries where it appears within the “Accessibility” settings.
Of course, I checked my own phone (we both have the iPhone 15 Pro Max on iOS 18.3.1) and it ALSO wasn’t there! However, I did get the settings panel retuned in a search on my phone. After this, it also turned up at the right position in the list within Settings.app.
It didn’t stay there though, because when I went back to take a screenshot, it was gone again.
On iPad, the Face ID and Passcode panel did turn up without any additional pre-searching for it, and yes - I restarted her phone properly too.
Weird eh? Attaching screenshots, note that hers is set to Swedish, but the “sort order” is the same. Thanks!