"Not device-dependent" is a false assumption. They are entirely dependent on you having convenient access to your email on the device. I have yet to to encounte

"Not device-dependent" is a false assumption. They are entirely dependent on you having convenient access to your email on the device. I have yet to to encounter one that was smart enough to authorize my session on the original device if I open the link on a different device (and there are probably good security arguments for not doing that). Even in the ideal scenario where I have a proper mail client, the alternative they present is: auto-filled password from my PW manager: 1 click magic link: click to initiate the login session (1); click to focus my email client (2); [wait for email client to launch if not already open]; click on the email (3); click the magic link (4) click to close the superfluous second browser tab (5); click BACK to my mail client (6); click to delete the now-useless email (7); click BACK AGAIN to my browser (8). Hate these things.