That's fine, but my point is that learning Vulkan while learning graphics at the same time is way harder than learning a much simpler APIs + graphics, then movi

That's fine, but my point is that learning Vulkan while learning graphics at the same time is way harder than learning a much simpler APIs + graphics, then moving that knowledge to Vulkan. I had a renderer in Metal in a (long) afternoon. Vulkan on the other hand took a few weeks to get something presentable.