I have had 3 Smart TVs and I have never used the so-called 'smart' functions on any of them.
I have a mini-PC (around 6k THB) which I connect to both the Internet and TV. Too many sites available to watch all sports, TV series, and movies for free!
Besides having the ability to stream TV I can connect to my printer as well as many other Bluetooth devices. Also it provides me a place to backup my phone, pictures, etc....
I would much rather have a PC than a dongle called 'firestick'.