Having to use a mouse and keyboard is a pain point for me when I use my desktop on my TV from the couch. For the mouse I use the trackpad on a ps5 controller, so the mouse isn't so bad.
Possibly you could: * Not require passwords for everyday operation of your computer * Boot into some sort of launcher designed for televisions * Have a fairly narrow set of apps and services that work well with your setup. For example I don't know how you'd use Netflix or Disney plus with a remote on Linux.