A smart TV used as a dumb TV alongside a quality streaming box (Apple TV or Nvidia Shield TV) or console gets you the best overall experience.
Many people, including myself, don’t want to buy “quality streaming box” just for watching Netflix or YouTube sporadically.
So, you do have to eat that financial hit for the least-bad privacy option.
However, one must acknowledge that you can now watch "TV" on almost all your devices.
Most importantly though, can you even get non-smart TV's these days that aren't super budget items? To my knowledge that's pretty much not a thing anymore (yes there are presentation displays and large format monitors, but that gets into the weeds fast about feature/panel/spec differences, not to mention price differences)
You don't have to use every feature of something for it to make sense. I have a "dumb" TV. It has built-in speakers, but I don't use those. Volume is set to minimum. My streaming box connects to decent bookshelf speakers.
I keep mine disconnected and use an external media box (AppleTV 4K).
I usually get Samsung and now I'm nervous about nag screens to connect to the Internet.
If you connect your tv to wifi, it can spy on you all the time. It can upload info on what you watch even if you used an external google tv puck to watch tv. It can see what you type on the screen if say you use it for say a monitor. There are reports of people deleting networking info but the tvs occasionally connecting back even though they deleted wifi info. You have to get a new network name to block them.
It's much much better to connect an external device, and if not that then use an ethernet cable to connect, because you can physically remove it.
Because the vast majority of people use whatever their tv came with these days in terms of smart tv connections, they don't set privacy settings. There's every reason for the tv makers to keep spying on you. If you have an external device their is motivation for them to not make you angry - but it's true that they can spy on you.
This has the major advantage that if the streaming hardware is ever obsoleted for any reason (ie, Netflix decides my TV is too old to support a compression codec they want to switch to), I only have to buy a new media player for $30 and not a whole new TV.
These all have a very simple job to do, and there’s absolutely zero value-add to the smart edge software nonsense.
It would make sense for a washing machine to be smart/have ai if it could detect clothes types and suggest a washing regime or warn you that selected regime can damage them. It'll also be nice to be able to schedule the washing so for ex. it's done when you get at home from work. For dishwasher - maybe somehow detect stuff that's incompatible with dishwasher and warn you?
I do also see a point in having a smart fridge that would detect products that expire based on some qr codes printed on them, otherwise idk...
Those examples seem like they would be useful for mentally disabled people. Not trying to be a dick here, but someone with declining cognitive abilities is more likely to put a sock in the dishwasher, to wash delicate clothing at 90 °C or to forget food in the fridge for months.
It reminds me of those items primarily designed for physically disabled people that (used to) be advertised for normal people on infomercials because the market for disabled people wasn't big enough.
Now, whether it won't nag you to connect with pop ups is a different question.
The difficulty in finding an affordable TV without smart functionality alone means that you're most likely buying a smart TV.
I yet again bought a Samsung smart tv (despite having sworn never to do so again..) and I'm never letting it connect to the internet after what happened to the last one.