On Thu, 7 Dec 2017, Dave Horsfall wrote:

Call me a cynical old bastard (which I am), but I can't see M$ raising a flag for Unix...  Wasn't it Billy Gates who reportedly said that any PC running Linux is one not running Windoze, and did his best to discredit it?

Microsoft today is not the company of old.  In recent years Microsoft has participated in standards bodies and worked on interoperability with other browser vendors.  They even joined the Linux Foundation last year.

https://techcrunch.com/2016/11/16/microsoft-joins-the-linux-foundation/