The Windows 10 Compact Overlay makes multitasking easier
As we’ve already mentioned in our Windows 10 build 15031 announcement post, Microsoft introduced the new Compact Overlay feature to the system allowing users to easily multitask between two Windows 10 apps with a picture-in-picture system.
This system is the most effective with video playback. For example, if you’re watching a movie with the Windows 10 Movies app, you can switch to another app and you’ll still be able to see the playback in the top right corner of the screen.