When I click the set up 2FA thing in the account settings I then see the following
That button contains a link with a secret key, and some other things. What am I supposed to do with it? I want to set the 2FA up to use my authenticator on my phone.
That’s also a good way of verifying! As long as you go through the login process somewhere different than your current browser window you should be able to make sure it works properly.