Okay so not exactly zero, but until a heavy hitter like Samsung won’t even consider, worldwide adoption is going to be low - their flagship just stuck with Qi 1, even though the standard existed for about two or three years at this point.

It has proper first party controller support nowadays. It’s very playable

Web Video Caster can cast to a large number of devices, Chromecast included. It has a lot of companion apps too on several smart TV platforms, all for the sake of getting your media played back on another device.