Since the Smart TV shit started, I've moved to just buying large PC monitors and using them with my PC. (It helps that I'm a cable cutter. There's nothing interesting on TV that's not streaming somewhere.)
I do not understand this. Buy the TV as it is bigger and cheaper. Just do not configure the WiFi and do not plug the Ethernet in. I have 2 Samsung’s that are set at just out of the box with no internet.
Some smart TVs will find an open AP if you don't otherwise configure them for internet access, hence the swing to dumb TVs and monitors for people who want to guarantee no logging of their viewing habits.
At some point I realized I did not even want to use the TV apps and did not care to maintain the PC with Kodi on it. I just switched to an AppleTV for everything and paid for MrMC (Kodi port for AppleTV that supports SMB/NFS mounting). So much simpler.
