I agree these flows suck, and others have described why companies do this. But I’ll also note there is a solution: use Apple Mail and Safari. Just as with Messa

I agree these flows suck, and others have described why companies do this. But I’ll also note there is a solution: use Apple Mail and Safari. Just as with Messages and SMS 2FA codes, it can auto-fill the code that was emailed to you, and delete the email when you do so.