This is old news but it's the first I've heard of it. I don't think I would be too enthused sharing info across the cloud. Supposedly this happens in v1803
A note about HomeGroup: Easily connecting to and sharing the important pieces of your digital life with those who matter most has never been easier with today’s Modern PCs and the cloud. Whether it’s connecting PCs and printers on your home network via the Share functionality in Windows or using OneDrive to share a photo album of your last vacation, Windows 10 makes connecting multiple devices and sharing content streamlined and simple. And it’s because of that evolution that with today’s build you’ll start to see us retire the HomeGroup service. HomeGroup was terrific for the pre-cloud and pre-mobile era, but today this functionality is built right into Windows 10 and apps. Starting with this build, the HomeGroup service is no longer operational in Windows 10. The user profile used for sharing and the file/folder/printer shares will continue to work.