In any scenario the brand of smart TV is irrelevant as thet all impair your privacy. Cost and effort are sadly now a feature, but not too much of a challenge. Never connect your TV to the internet directly. The easiest step is a Chromecast. I recently needed to replace my dumb TV with a smart TV. For me I just bought a TV at a price point that allowed me to also buy a used old PC box plus a wireless keyboard a touchpad. You could alternately use a Raspberry Pi. Either way, you ultimately have control of what is shared or escapes for your privacy.