Maybe not confused. But I still think it would be useful and educational (as this is a tutorial) to clearly separate creating a (virtual) machine and installing an OS on it. If you only want to preserve the machine identity to which your license shall be bound, simplest is to export the empty...
hsehsestedt is absolutely right (and Kari seems a bit confused): You _can_ export the VM before installing Windows. Activation does not change anything in the machine (the exported configuration files). Digital activation connects machine identity to a license on MS activation server. This...
No need to disable Windows Hello. But if you "Require Windows Hello sign-in for
Microsoft Accounts", the MS account users cannot sign in using RDP. And if there are no local accounts, nobody can login from RDP. Thus "empty" screen.
This is not new.
If using MS account and enhanced mode, "Require Windows Hello sign-in for Microsoft accounts" must ne OFF.
Settings > Accounts > Sign-in options.
Windows Hello is for local logins only.
Nothing new here. Windows 11 is Windows 10, so far.