I was blown away by something unexpected this weekend. I looked like this but the FaceId on My iPhone X recognized me each time I looked at it!
I didn’t really expect it to detect my features but it kinda makes sense as the glasses block UV and visible light but FaceId uses IR light.
I didn’t do any additional testing to check if this was more of a false positive. But it was nice not having to unglove the hand to use a fingerprint sensor to unlock the phone in the cold, chilly weather.