Comment by flohofwoe

> and a legacy OpenGL driver too

FWIW, the OpenGL 'driver' on macOS and iOS is just an layer on top of Metal for many years now - e.g. same thing as ANGLE, DXVK or MoltenVk, just maintained directly by Apple.

The important difference both of D3D and Metal compared to Vulkan is that Vulkan lacks steering and vision (e.g. it's not a technical problem at all but a cultural/organizational).

Vulkan development looks like GPU vendors just come up with random Vulkan extensions which then from time to time are blessed by Khronos and elevated into the core API.

This "throwing shit at the wall and see what sticks" approach was already the biggest problem in GL (and my naive younger self thought that this obvious problem would be fixed with Vulkan - alas it turned out that this was the one thing that Khronos didn't change). This is really not how a 3D API should be designed.