If something that sells 100 million+ devices isn't "super popular", I don't know what is. And not even counting the millions of TVs that have it built-in (Hi-Sense, TCL, Samsung) the brand is pretty ubiquitous.
I was being generous and said "not even counting," but no despite the internal name change, most still maintain the "Chromecast Built-In" designation on their branding and sites which takes a mere second to Google and see.