Does anyone know why the Mac port has not been updated since 2012 (but downloads are still being offered)?

From my experience with open source projects: nobody in the team owns a Mac.

I disagree with that. macOS is basically BSD and it’s great for Dev. Most of the devs I work with use it.

Apple ditched OpenGL and Vulkan for their own exclusive 3D graphics API. They're a terrible platform to develop for.

Apple ditched OpenGL for their own exclusive 3D graphics API that they had released in production before Vulkan was even announced.

That they don't bother with supporting Vulkan is incredibly frustrating for me personally, but not even remotely surprising given Apple's mode of business.

Does MoltenVK not do what you want?

For reference:

"MoltenVK is a Vulkan Portability implementation. It layers a subset of the high-performance, industry-standard Vulkan graphics and compute API over Apple's Metal graphics framework, enabling Vulkan applications to run on iOS and macOS." [1]

[0] https://moltengl.com/moltenvk/

[1] https://github.com/KhronosGroup/MoltenVK