I'm not entirely clear why I/we weren't aware of Duplex Media Player here at AAWP, but it's been around for a while, is a full Windows 10 UWP, plays all audio and video seamlessly, has Chromecast support, and can stream from OneDrive or media servers directly. Yes, it's a commercial application, but it's only £1.70 if you grab it in the next 12 hours and, with one small caveat, it's really, really slick.