Unless the pc is free, why the fuck would anyone use it?

I can imagine something similar to this concept would be great for enterprise environments. I imagine an employee at home using a basic thin client and connecting to a “mainframe” of a server that exists on premises and is running an individual VM or whatever for each employee’s thin client. Which I think is basically already a thing. But for a home PC, with that VM being run the OS manufacturer’s servers? No, I don’t think anybody should want to pay for that.