The only reason I don't use one now is that I travel a lot more so it's irrelevant, and I have to work enough on tools with Google/Vercel/other analytics that it is just very inconvenient.
Regarding smart TVs, I have found that it's better to just use an Apple TV or Kodi box and never connect to them internet though. Having said, I gave my TV away because I never used it, so this might not be as up to date. A Pi hole will block ads on smart TVs though.