Many devices already have hardware sources of randomness built in. The problem is just that they are unverifiable and built by companies that have shown themselves to be untrustworthy.

No, the problem is that the built in sources aren’t funky enough ;)

In all seriousness, though, yes and guaranteeing that the manufacturing process itself can “bake” in the randomness is a super interesting area of research. It’s like 99% of the manufacturing process is an exercise in reducing variability, and then there’s PUFs, where you’re basically trying to maximize variability, but in such a way that you maintain computational precision.