My parents still use all the smart TV features in their 4+ year old LG C8. They don't have any streaming boxes, I tried to give them my old Apple TV a year ago but they didn't like the remote (don't blame them for that, it is garbage).
They use Netflix, BBC iPlayer, YouTube and the Disney+ apps daily. No complaints other than when the wifi sometimes goes out but that isn't a fault of the TV.
They use Netflix, BBC iPlayer, YouTube and the Disney+ apps daily. No complaints other than when the wifi sometimes goes out but that isn't a fault of the TV.