https://wccftech.com/early-look-at-microsofts-new-windows-10x-file-explorer/

The work on Windows 10X, Microsoft's operating system for dual-screen devices, continues with full force. The Windows maker has released emulators to enable users to get an early preview of the operating system and developers to design and test their apps.

While Microsoft says Windows 10X is an expression of Windows 10, the operating system is set to bring quite a few UI changes, which may end up being part of the "regular" Windows 10, as well. We have already seen changes coming to the setup screens, and it now appears File Explorer will get a refresh too.