Good day! I am trying to find a good alternative as not to use the"smart" functions or using an Xbox to consume our media. I found a few options ie like plasma big screen but it’s no longer in development. Essentially I would line love to have it running on an rpi4 and just hooked up to the TV.
As others are saying, OSMC might work. Most difficult part is making it so that the TV turns on when you turn on the computer since ARC isn’t a thing for most computers.
I ended up giving up on OSMC and bought an Apple TV since nothing else got the “wife approval” factor. It’s better than Google getting my data, has a Plex client, and let’s me stream my Steam library.
The RPI has CEC support