Access Shared MS directory on Home network

Accessing shared directories on a home Microsoft network should not be hard.

tldr;
When accessing a shared directory, use MicrosoftAccount\[username@email.com].

To access shared directories in a Microsoft environment without having to reduce your security feels weirdly hidden, but the solution is very easy.

When the login screen requires a username, do not just use the username@email.com as you would assume… Add MicrosoftAccount\ to the front and it should be good, assuming your user actually has been granted rights to the other folder.