Chromecast isn't being phased out, not sure what you mean? Your issue with Netflix is how the Netflix app works, it wants a second layer of authentication, and

Chromecast isn't being phased out, not sure what you mean? Your issue with Netflix is how the Netflix app works, it wants a second layer of authentication, and the nature of the framework (it's not just streaming video from a device, it's basically an app that gets beamed over so the device can do the streaming itself) is that they can put up whatever they want. Do the same thing with Youtube and it's seamless. Try it with AppleTV and there's no support at all (beyond trickery like casting a browser window). Big Tech can't agree on this stuff and never will as long as there's a garden wall to build.