You are missing the part that PowerShell has exactly a Xerox PARC like experience, first with PowerShell Integrated Scripting Environment, nowadays the same experience is available in VSCode.
Replicating the experience of using something like Smalltalk transcript window.
Of course Windows has SSH support, it needs to interoperate with UNIX, given that UNIX won the server room.
No need for SSH to talk with Windows Core/Nano, it can be done via Web GUI administration, or PowerShell remoting.
> Replicating the experience of using something like Smalltalk transcript window.
As far as I know from Pharo, the Smalltalk transcript logs plain text and is less capable than xterm. So what you care about is not the capabilities of the terminal but having a long-lived interactive session/REPL or a REPL integrated with an editor?
> No need for SSH to talk with Windows Core/Nano, it can be done via Web GUI administration, or PowerShell remoting.
I was thinking of the administrator connecting to Windows from their Mac or Linux/BSD machine. I don't know if that's a good idea compared to them getting a Windows VM and using Windows-to-Windows PowerShell remoting as you suggest.