Or you can buy a Tivo Stream 4K with Chromecast for $49.
Or: Stadia premiere edition includes Chromecast 4k ultra plus a Stadia controller for $99. Rumours of new Chromecast with Android TV coming.
I’ve had Chromecasts for years. It’s kind of a PIA. The device too often isn’t found, and requires rebooting, a reset, or some other recovery. Very annoying, as it tends to happen when I’m trying to watch something. I recently bought a MI Box and love it. It has Chromecast included, and the Mi Box version connects much more reliably. Yes, they’d better come up with a new version, that offers more than the ability to cast.