Dunno if they still do this, but years ago when I created one email account per service I used (github/jobs/online orders), I didn't have to add a phone number

Dunno if they still do this, but years ago when I created one email account per service I used (github/jobs/online orders), I didn't have to add a phone number or other 2fa to the Outlook addresses themselves inside Outlook, but I did have to do it for the Gmail addresses. That being said, after a certain period of time, I think Outlook eventually prompted me to add 2fa.