How about when the email client pops up its own browser, intercepting the link, so that when you open it in the system browser, the link is burnt and you have t

How about when the email client pops up its own browser, intercepting the link, so that when you open it in the system browser, the link is burnt and you have to do it again? Or when the email service is overloaded and the magic link takes more than 30 minutes to arrive and by the time you open it, it has expired?