If you log in for the first time and want to activate two-factor authentication, You now have 2 choices.
Activate a security key.
This could be fingerprints, physical security key, facial recognition or some other type of authentication hardware. Then the next time you log in you will need to authenticate with this hardware key after you have entered your username and password
Click on “Activate security key” and follow the steps in your browser to activate this
Enable authenticator app
Use an app to authenticate yourself with randomly generated numbers. For example, Google Authenticator, Authy or 1Password. The next time you log in, you will need to authenticate with this authentication app after entering your username and password.
To activate an authentication app, scan the code with your chosen authentication app. You will then need to test the connection by entering the code from the app into the interface.