This is a lot less elegant and functional than Spotify Connect which will keep playing the same song seamlessly. If you are listening to a song on Groove on your Android phone and click 'Continue on PC' it opens the app on your PC in a browser which can then switch apps and open the song in the Groove Music app on your PC from the beginning of the song. While it is handy, it's limited at this time. It works fairly well, though it can take a couple seconds to open on your PC. It also works with links, even if you're browsing on Chrome on your phone and have Edge as the default browser on PC. You can take a document you're working on and push it over to your PC. It's a nice addition to Android and will hopefully get better over time. This will be familiar to anyone who has taken advantage of Project Rome. This lets you start doing things on your phone and easily jump to another device.

Microsoft Launcher takes that idea further by bringing 'Continue on PC' to Android. Arrow Launcher already had features such as Wunderlist and Outlook calendar integration.

Android windows 10 launcher