...to stream from which content providers? They still have your viewing history, and that history eventually will end up at the data brokers to be perused by the interested parties. Which is really not that different from if you were using smart TV, except maybe a little bit more revenue for TV manufacturers.
For me, Netflix, Paramount Plus, and Disney+, along with Youtube.
> They still have your viewing history
So? That goes without saying. But the TV vendor doesn't get to spy on my date, I get a consistent and fast UI across all video sources and all TVs, and I can watch local, non-streaming video without any third parties being involved.
And I have no issue using YouTube without signing in.