I was thinking that maybe simplifying how vulkan instances can enumerate physical devices by returning std::span<physical_device>.

This is for simplifying enumerating available physical GPU's on the user platform. Where each vk::physical_device would each contain relative parameters that tell you what configuration or support each hardware GPU have that is available for the user to utilize.

This was an idea that I had previously, I wanted to create an issue to come back to it if I want to do this later on.

Example

Here is an example of an API, I had considered.

vk::instance instance_ctx(/* some params setup */);
std::span<vk::physical_device> devices = vk::enumerate_physical_devices(instance_ctx);