I rooted my (Android TV based) smart TV, removed all the tracking (verified with PCAPDroid), and I use Stremio and SmartTube to stream everything. I also use AFWall as a firewall to whitelist only apps that I install to access the internet only through my VPN. I set my DNS to 0.0.0.0 to block all traffic outside of my DNS if my firewall ever fails because Android TV doesn’t have that option unlike regular Android.
I have a Hisense TV if you’re curious. You can also get a TV box that is supported by LineageOS and do the same thing on there.
Whenever Android 10 gets super outdated, I’m hoping that Plasma Bigscreen will be advanced enough to be able to replace it, then I will just use my laptop for TV activities instead. I also would need Linux to get better HDR support (currently it only supports HDR10 and not HDR10+ or Dolby Vision) and for AMD drivers to gain HDMI 2.1 support (which is being blocked by the HDMI forum for stupid reasons. The code has been ready for a while, but AMD isn’t allowed to release it)