Hi Metin,

re:
> I assumed that addressing the Metal graphics library would mean making
> full use of Apple's CPU + GPU hardware power.

Not particularly... the OpenGL drivers were already doing that. That's why for example these benchmarks had better performance in OpenGL than in Metal on the same machine for many cases:
https://forums.macrumors.com/threads/metal-vs-opengl-benchmark.1957306/

But the OpenGL drivers will get less attention over time and maybe eventually be discontinued. Or maybe it will end up something like how it is on Windows where OpenGL is provided by the video card vendors instead of by the OS. That also leads to flaky drivers as well though.

- Michael