This is because the Chromecast protocol uses a binary for Netflix. The others do it with local websockets or a cloud proxy so they work just fine with this setup.
Google is clearing up some Chromecast confusion by rebranding Chromecast Built-in. Specifically, Google Cast is making a comeback after almost eight years, with the new (or should we say old ...
This doesn't mean your Chromecast will work perfectly with your setup since other things could affect your signal strength. If you have wireless issues on your Chromecast, it'll instantly ruin ...