I never regretted the 200€ I paid for an appleTV 4K. No ads, no nonsense, just a smooth and pleasant smart tv experience. Even got almost all the features I was missing compared to android tv through updates over the 4½ years I’ve had it (like vpn support). Whichever brand I‘ll be getting, when I eventually upgrade my tv, I‘ll never connect it to the internet and just continue using my AppleTV.
I think he's saying he doesn't connect the smart TV to the internet. He plugs in his apple TV (and that is connected to the Internet) and has all of the 'smart' technology.