The legal definition matters a lot if someone is trying to argue that VW advertising Android features is supposed to include GrapheneOS

> Using anticompetitive and monopolistic tools is not the right of application developers.

Please talk to an actual lawyer before making legal claims, because to be blunt it's very clear you don't know what many of those terms mean in a legal context. VW is not a "monopoly". They have no obligation to allow the use of their software on platforms they don't want.