By now, it doesn't really matter which brand you use. I have analyzed Samsung, Sony, LG and Philips and ALL of them send data about your usage to NetEase in China and ALL of them have ToS that say that they might record your voice and store it for improving their AI or whatever. Plus all of them shove suggested apps in your face, so I'd say it is only a matter of time until all of them show more aggressive ads.
But if you fully wipe it and then keep it fully offline, most TVs have a great screen and they can be configured with "gaming mode" to work like a low-latency HDMI / DisplayPort display. And without internet, there are not ads :) and no forced (useless) updates.
BTW, my LG OLED is completely ad-free, defaults to using HDMI port 1 and even has GSYNC. Just connect any barebone with an NVIDIA card and you have 100% control over what you see.