https://www.bleepingcomputer.com/news/microsoft/microsoft-reveals-more-windows-10x-details-heres-what-we-know/

Windows 10X is a streamlined version of Windows designed to be compatible with foldable and dual-screen devices. Windows 10X was announced back in October and Microsoft is planning to release it in the 'holiday 2020' with Surface Neo, but many details so far have been scarce.

Today at Microsoft 365 Developer Day, Microsoft revealed the technical details of its new dual-screen experiences. At the event, Microsoft revealed how dual-screen devices are optimized for the existing apps and games. For developers, Microsoft has also highlighted how the existing apps can be modified to work on three dual-screen patterns including Windows, Android, or the Web.