You cannot "migrate" from Twitter to Mastodon in the universally understood meaning of that word in a software context. Because there is no way to take your data with you.
"How to open a Mastodon account" would have been a more accurate title. But obviously not as baiting of clicks!
The appeal of Twitter is the people you follow - if they're not in the Fediverse (and believe me, I have tried), you're unfortunately stuck with either staying on Twitter or abandoning those people. Maybe as time goes on people will slowly migrate but I can't see it happening in sufficient numbers unless something catastrophic happens to Twitter.
You cannot "migrate" from Twitter to Mastodon in the universally understood meaning of that word in a software context. Because there is no way to take your data with you.
"How to open a Mastodon account" would have been a more accurate title. But obviously not as baiting of clicks!