The serfs are the general public who MUST interact with either Google or Apple as regular account users. Each feudal lord has their own laws that they technocratically enforce. And if you break them or otherwise offend their people or systems, you are severed from the feudal system with no grievance.

And with 2 phone dealers and no legal requirement for accounts, this creates a powerful situation both feudal systems can enforce without any other ways out.

Apple has been locked down on their phones, and moving sttongly that way on their non-phones.

Google has announced they are locking down 3rd party app stores and sideloading, because they can.

And we've heard the horror stories of person locked out of google, and that hellscape.

And Microsoft was able to shut down multiple European courts by simply turning off their accounts. Again, lost everything.

This is what I mean by technofedualism - its the recreation of a fedual government enforced not by state violence, but by technology.