It takes some research if youve never done anything like it before, but you can drip feed it the internet via a pihole, and starve it specifically of ads and data collection. Keep the functionality, kill the leech.
Google smart tv pihole, theres a few guides, for anyone interested.
Just depends on what you need it for, and what youre trying to plug into it.
For example, some people dont have spare computers to turn into a mini server, but do have $60 and the time to fiddle with a raspberry pi.