I would much rather buy a dumb TV. I feel that the smart TV experience is an opportunity it eventually make TVs feel dated and slow. I would rather buy a standalone streamer that I can plug in. Buying a new $100 dollar streamer every couple years is cheaper and produces less e-waste than buying a new giant TV.

I isolate smart TVs and other IOT devices to a separate network/subnet, and usually block their network access unless they need an update.