I wish Apple had made a point to support Vulkan. I know about MoltenVK and all that fun stuff, but for a time, there was a graphics API that worked on all of the major platforms: OpenGL.

Vulkan was meant to succeed OpenGL, and despite my annoyances with the API, I still think that it's nice to have an open standard for these things, but now there isn't any graphics API that works on everything.