The vulkan_funcs seems to be no longer set/needed.
Right.
Would this commit/allow us to drop the lazy loading introduced with commit 70cf97a59c0e48370ab0ff719a82aed015ad3195
Could be, is it causing any trouble? I think it can avoid loading the win32u drivers (although right now they probably get loaded elsewhere) when offscreen vulkan is used, which might be useful?