Remote Desktop fun (macOS to Windows)

Had to dig a bit for this one as it was not immediately clear to me.

When you are trying to remote from a Mac to an AzureAD (or Entra ID) joined Windows device using Microsoft's Remote Desktop app, you have to use a special username.

You need to use: AzureAD\UPN
Example: AzureAD\userid@example.com

You'll also need to turn off Network Level Auth for it to work, which I don't recommend. However, if you're desperate to remote in, these are the required settings.