@fatboy Yes, microsoft eventually realized people were escaping to GNU/Linux at an increasing rate and they determined they needed to convince many suckers to stay.

As a result, they determined that they needed to port GNU (and GNU clones like BusyBox) to windows and make that available is a carefully restricted form.

A proprietary trick they successfully pulled off was "WSL1", was yet another case of calling GNU, "Linux", as it doesn't have Linux in it (it's pretty much reverse of WINE, that being GNU plus a translator of Linux SYSCALLs to windows ones), which is pretty similar to Cygwin except re-compiling software with a windows port of gcc isn't required (MinGW).

"WSL2" meanwhile is just glorified GNU/Linux and BusyBox/Linux VMs, offering nothing over what Virtualbox has offered for years.