Microsoft is yet to release Windows 10X, but the upcoming OS has already been shown working on the Surface Pro 7 and even the Lumia 950 XL. Windows 10X should officially arrive later this year pre-loaded on dual-screen devices.
https://www.notebookcheck.net/Windows-10X-can-run-natively-on-the-Surface-Pro-7-and-the-Lumia-950-XL.515949.0.html