It's a tautology that only open-source drivers will be part of the codebase of an open-source OS.
It's also more or less a given that first-party code will be better-integrated into an OS than third-party code is. That was a prevailing element of the discourse surrounding the outage CrowdStrike induced on Windows weeks ago, for instance. That's not a proposition unique to open-source operating systems. Indeed, what is unique to open-source is that is possible for outside vendors (or individuals) to put their code through a process that eventually gets it that maximal level of integration.
So, uh... no?
