There’s a chance, OP, that you might have carbon monoxide poisoning if it’s true that you “became paranoid all of a sudden”. For anyone with gas appliances, regularly check that your CO detectors are working.
I don’t mean this as a diss or to invalidate your (totally valid) concerns about data privacy.
I’ve had this issue ever since I got one of the latest model a year ago. Need to reset it like once a month.
A factory reset didn’t fix it :/
And I have another Apple TV 4K which is one generation old that’s never had the problem.