Before adjusting system registries or settings, confirm your system's current reporting status via the built-in Microsoft DirectX Diagnostic Tool.

To help you get the most out of your setup, what do you have, or what game are you trying to optimize? Which version of DirectX is on your PC? - Microsoft Support

You don't "enable" it; you "qualify" for it. If you have a modern GPU and Windows 11, you are already living in the future. The only step required is keeping your GPU drivers current via NVIDIA GeForce Experience or AMD Adrenalin.