rob-lag

What's missing for me is that they never seem to mention which social media platforms in particular these statements are directed at.

There are many social media platforms, some of them similar, but some are also vastly different from each other (e.g. Hacker News vs. TikTok)

Making statements about all of social media without such clarifications makes them pretty unreliable for me.

Yes, there are so many other 2FA authenticators, many of them even open-source. Why would you ever use the Microsoft one?

One-time pad has 2 problems:

(1) The key can only be used once. If you use the same key for multiple different messages it's not secure anymore.

(2) The key has to be the same length as the message.

With those 2 restrictions, OTP is not really that feasible for practical applications.