As a person who works from home, flexibility in my work is really important. And there is an inevitable mixing of personal life and work life. For that reason, it would be immensely helpful for me to be able to switch between my personal and work Monday accounts more easily!
The functionality exists in the browser version. I see no reason why it would not for the Mobile. It would allow me to be more productive in all aspects of my life without the interruptions for magic emails or spotty QR Code log ins.