There was more of a case in the 90s, but the fact is that today's Microsoft has a strong open source development presence, and incompatibly embracing and extend

There was more of a case in the 90s, but the fact is that today's Microsoft has a strong open source development presence, and incompatibly embracing and extending was always, even in the 90s, an odious GNU practice that they happily perpetrated against non-copyleft Unix. "FUD" is a mindkilling term, so I won't call this apparently sincere post "spreading FUD", but I will suggest that you try PowerShell Core (MIT licensed) on the platform of your choice.