It won’t break out of the blue, don’t use the features and if it works out of the box it will continue working without updates and worst case if something is problematic you plug it, update and unplug it.

TVs aren’t mechanical devices like a washer where they switched metal parts to plastic to save a couple of dollars here and there.

Heck, you can even just buy a PC monitor or a projector if you’re just against smart stuff!