Most "smart" devices are utter garbage. I found a seller of non-smart TVs, which manufacture here in the UK, which made me particularly interested - Cello: https://celloelectronics.com/model/televisions/ (you can filter for non-smart TVs).
The problem? The picture quality and sound of the one I got (TBF, the cheapest medium-sized TV they sell) is not great. Fine for a spare bedroom for occasional use so a guest can watch something short, or in an office where I might want the news on, fine. But I couldn't watch a film on it, and it's nowhere near the level of my main TV.
Given that no smart TV manufacturer is ever going to get a single byte of data from me they can sell, I guess the joke is on them? I wish I didn't have to do this dance though: give me a smart TV where I can get the apps I choose, but the manufacturer is not ramming it full of spyware... that would be amazing.