do you mean "Windows Subsystem for Linux"?

I guess... In the past we had “Windows Services for UNIX” - which, by the way, was based on the actual POSIX subsystem rather than something that sits on top of Win32. Anyway, the point was, shouldn’t “for” in this context be understood as “instead of”?

"Windows pretending to be Linux" doesn't have the same appeal.

WSL is not based on Win32. It is a personality for the NT kernel, much like the POSIX subsystem was.