You can set a default authentication method for your account. This is for your convenience where the default method will automatically be used and you will not have to manually select a method when prompted.
Go to https://myaccount.microsoft.com and click "Update Info" under "Security info"
Click "Change" next to "Default sign-in method"
Click "App based authentication - notification" and then "Confirm"
The new method will now be your default. Each time you sign in it will use this method.