It absolutely drives me nuts that the western world is moving to "as seen in China" login-via-callback flow. Aside from the privacy issue of forcing people to attach an email or phone number or third-party auth provider to their every account, it's just a waste of time and energy to delete our passwords and force us through this weird multi-app flow just to log in to a service we spent years logging into without ever getting hacked. Imagine if every time you wanted to get into your house you had to press the doorbell and then wait for someone to call you back to decide whether you should be allowed in. It's absurd.