[JoshMnem]

Or GNU/Linux Subsystem for Windows? It's called "Linux Subsystem on Windows" in the HTML:

<title>Install the Linux Subsystem on Windows 10 | Microsoft Docs</title> [1]

Microsoft has a tendency to create confusion around names when they relate in some way to Free software.

Another example: Office Open XML.

[1] https://docs.microsoft.com/en-us/windows/wsl/install-win10

[flatfilefan]

I was actually trying to guess whether it’s an April joke indeed because of the naming.