I got a banner saying I was logging in with Twitter and that option is going away. That’s news to me as I usually chose Google to login.
Regardless, there was a link to “link my account…” but tapping it took me to a section of my profile preferences that had no such option. There was nothing for me to do. I’m confused.
I logged out, created a Discourse ID, then logged back in using it and doing the normal password and 2fa dance. I think that has linked my account to my new Discourse ID but I’m not sure because I can’t see anywhere in my profile what method my account is using. (Edit: I see the linked account at https://id.discourse.com)
So, all is not clear to me.