Xbox One X apparently supports HDMI-CEC now. Found under display options, TV & OneGuide, Device Control. : r/xboxone
How to Enable HDMI-CEC on Your TV [Easy Steps] | Beebom
Sony TV Turns On By Itself (Here's Why & How to STOP It!)
Amazon.com: BlueRigger HDMI CEC Less Adapter (4K UHD, ARC,1080p, Ethernet, Male to Female CEC Blocker) - Compatible with HDTV, TV Stick, Chromecast, Nintendo Switch, Xbox, PS5, Laptop, PC, Game Console, Soundbar :
BRAVIA Sync (HDMI-CEC) overview and troubleshooting information | Sony USA
The best TV trick you're probably not using (but should be)
BRAVIA Sync (HDMI CEC) operations cannot be performed for connected HDMI devices when using the Picture-in-picture feature. | Sony IN
How to Enable HDMI-CEC on Your TV [Easy Steps] | Beebom
HDMI-CEC - The shy unsung hero in audio video electronics — Ooberpad
HDMI ARC and CEC not working? Try these fixes | Trusted Reviews