Microsoft as the largest open-source vendor

Actually, quite a logical step - instead of fighting over, it will lead MC.
But in fact, MS goes a step further, mark my words. They not only reveal the source of all common foods, they still make them free of charge, most likely under the GPL (!). The only paid product will be Windows only. More specifically, Windows will generally only paid product in the IT market, and the rest either die or are transformed into service providers.