the answer is basically all TVs are subsidized to some degree. A list is somewhat pointless because they all do some sketchy shit and as lg has recently shown they reserve the right to change the terms years after the fact with firmware updates, even if you buy a flagship model that cost 3-5k

Basically you need to use it intelligently. Either don’t connect it to the internet at all, only connect it to an intranet/isolated vlan, or (least effective) block every suspicious outgoing request with your router or a dns thing like adguard/pihole.

The alternatives are to buy a non consumer display (eg something for signage or for like a meeting room in an office) which are usually more durable but also often far more expensive (no ad subsidies), the panel quality is generally noticeably worse (unless you’re buying a mediocre tv), and you lose out on enthusiast features (earc, vrr, etc). Or you can get a solid projector; the cheap projectors are usually kind of junk but nice ones are quite nice and often (but not always, they’re increasingly “smart”) have barebones ui/os. This can be pretty impractical for your living situation though