Please actívate the miracast wifi direct screen mirroring option, it dont need a Chromecast to work, AND ITS todo bad have the option Is un the menú bit dossent works, im waiting a lots updates and dossent happens, please actívate this feature, really really Is very usefull cast all phone screen on TV.
HMD have chosen the stock Android / Android One path. Personally, that is a major reason why I'm interested in their products. That means being extremely closely aligned to Google on most features. Google deprecated Miracast in Android Marshmallow 6.0, in favour of Google Cast / Chromecast.