Just reload the settings page after saving and you'll see the activation link. Just now enabled 2FA for my account.
I'm just getting familiar with lemmy fediverse and trying to make my way through it after getting out from reddit. I'm trying out liftoff app for android and I'm seeing way more double posts from different instances from same users. Same content from same users on multiple instances. I thought fediverse supposed to, You post in whatever instance you are and it'll be shared among all instances. I'm more confused now.
Word of mouth marketing is the best strategy right now. Look how lemmy user base spiked in recent days. More people will look for alternatives after 3rd party apps stops working on July 1st. In the meantime, spread the word on reddit.