[throwaway2037]

    They don't make their own chips, right?

In 2023, this is a moot point. Neither does Apple. Neither does AMD. Neither does Qualcomm (which makes the vast majority of mobile phone CPUs). Neither does Broadcomm.

To your second point: I am surprised that AMD hasn't tried harder to chase the high-end enterprise GPU market. Maybe that is a longer term secret plan after they gain more CPU market share. It is possible that a GPU ecosystem cannot out-compete NVidia's CUDA at this point.