I also have a Samsung "smart" TV. I bought it around 5 years ago, right around the time that the "smart" part was becoming the default. If there had been a cheaper TV with the same picture quality without the "smart" thing I would have bought that, but nowadays they tend to be cheaper.
Never plugged the network cable in, so I don't get any pushy "update" messages. As such, the TV does what it's supposed to do. Only minor annoyance is the fact that it takes quite long to start up, you can see the samsung logo on it (so the screen is ready) but it is probably trying to phone home - failing every time - and waiting for some response from their puppet masters.