https://learn.microsoft.com/windows/client-management/client-tools/connect-to-remote-aadj-pc
net localgroup "Remote Desktop Users" /add "AzureAD\user@domain.com"
https://mitsurublog.com/post-11465/
## The user name or password is incorrect. Try again.
Use “AzureAD\[Email]” instaed of just “[Email]” for the username.