Additionally you may add a biometric login (fingerprint or facial recognition).
This is setup per device, meaning that if you setup a biometric on your phone, it will not work on your laptop.
If you want it on another device you have to add that device as well.
If you have setup biometric on a device, you don't need to fill in a e-mail or authenticator code.
To set it up you just have to fill in a name for this device and click the button.