https://www.techradar.com/news/microsoft-shows-off-the-true-power-of-windows-10s-sets-feature

Microsoft took the time to go over Sets at its Build 2018 conference today, underlining the power of this new feature for Windows 10, and how it aims to truly streamline and make using the OS a far better organized experience.

Those who test Windows 10 will already have played around with Sets, as it has been live in preview builds of the operating system for a little while now. The basic idea is to bring the concept of tabs from the web browser to the entire interface of the OS in general, so you can have windows with tabs that contain web pages, apps, folders – a mix of everything essentially.