My comment was made from a user's point of view. I explicitly did not care about technicalities or who wrote what code. All I meant is that I can do things with an out-of-the-box Mac that require downloading third-party tools to do on Windows.

How Microsoft achieves that is their problem to figure out, whether they license these tools or reimplement their functionality, as long as the functionality is there out of the box. But I guess shoving ads (aka cancer) into the lock screen is higher on their list of priorities.