SmartTubeNext (STN) is the Android TV equivalent of Revanced.
I did end up making a Google account just to get mine set up and for syncing subscriptions between STN and Revanced on my phone. I don’t use it for anything else.
As others have said, replacing the launcher with something like Sideload Channel Launcher 4 is a good option.
Other useful apps are Button Mapper (for killing the netflix remote button and for mapping the home button to your new launcher) and Send Files To TV to easily sideload apps without a ton of setup.