That’s a good point! This is an outlier type scenario though, in my opinion. Not ideal but, perhaps a local node facial scan against a Government ID, as a backup to biometrics could work? I noted that the webcam in my laptop was used to scan my face against my passport when I recently opened a Kraken account.
A quick Google right now indicates that Samsung phones include iris scans https://www.samsung.com/global/galaxy/what-is/iris-scanning