The OneAuth Android app cannot be used on a Chromebook Plus, for a strange reason.

The OneAuth Android app cannot be used on a Chromebook Plus, for a strange reason.

I got the following error message (in French, translation follows) ->
"Ce navigateur ne prend pas en charge le protocole WebAuthn/FIDO2. Veuillez réessayer avec un navigateur pris en charge."
or
"This browser does not support the WebAuthn/FIDO2 protocol. Please try again with a supported browser."

It is not in a browser; it is an Android app! How could that be? Could you fix this?