Some computer games and other graphics intensive apps are using vulkan, and they will now work with an nvidia card without needing to go get nvidias proprietary driver, which is often buggy due to not being properly tested with your desktop and system in general.
Navigating around in your shell (blog.meain.io)
Open Source NVIDIA Vulkan Driver NVK Reaches Vulkan 1.0 Conformance (9to5linux.com)