> Vulkan is also not really cross-platform any more than DirectX. [...]

Vulkan is not entirely cross-platform, but it's still way "more" cross-platform than DirectX by your own point of view.

DirectX: - Windows - Xbox

Vulkan: - Linux - Android - Windows - Nintendo Switch - Nintendo Switch 2

Metal: - MacOS - iOS

On modern Windows it depends on DirectX, as the new ICD infrastructure is part of the DirectX Runtime part of the OS.

https://learn.microsoft.com/en-us/windows-hardware/drivers/d...