I feel like that would end with the same surveillance loopholes that Google, Microsoft and Apple exploit today.

Users need the ability to choose operating systems and software that is not exclusively green-lit by a first-party vendor. It's not glamorous, but pretending that software isn't a competitive market is what put us into this surveillance monopoly in the first place. "trust" distributed among a handful of businesses isn't going to cut it in a post-2030s threat environment.