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They can decide what type of login they want to use (the login type field). If the drop down on this field is selected, it will provide an option of either Password or Authenticator App (note they will need an app from their Apps store).
Using 2FA
If their Reset Password screen looks like the one below, it means that they have previously setup 2FA. If they did not want to use 2FA, we would suggest turning this off (deselect the tick) and then once they have logged into their Portal, to then turn this off (this is done via My Details / Login tab / remove the tick for “Use 2FA for password reset”.
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