Just stop using computers at all to program computer games.

Just consider that Netfliix and Co. don’t offer higher resolutions than 720p (?) on browsers that are not Edge (or does Chrome support it by now?). I really forgot the details because it’s such a mess using them on Linux. But maybe you use other sources for movies anyways. Also if you need to use your browser for media streaming you might lose some benefits from CEC because you still control things with mouse and keyboard.

Thanks to HDMI-CEC you can control additional media players with your TV’s remote. Sometimes it might not be perfect for things like long presses and stuff, but for basic controls it works.

That’s my experience with an Nvidia Shield and a Raspberry with KODI. I wouldn’t really recommend the Raspberry though.