DirectX is coming to the Windows Subsystem for Linux
It appears that Microsoft has now initiated the "Extend" phase of their classic Embrace, Extend, Extinguish playbook. The key is that the proprietary Microsoft specific API added by this patch is only usable in a WSL environment as it relies on many pieces of proprietary closed source software that Microsoft is unwilling to open source. This patch does nothing but fragment the Linux ecosystem and encourage people to develop software that only works in WSL environments. With the "benefit" of forcing the Linux kernel developers to pay the maintenance costs of course.