In my experience it is mostly the opposite, they are clueless on how it is actually done for the most part, but they assume everything connected spy on them and they assumed they do it in more complex ways than they actually do, most thing that some conversation out loud they had with a friend when they had a phone in their pocket is the reason the algorithm proposed them an ads about it.
According to a nationally representative phone survey of 1,006 U.S. adults conducted by Consumer Reports in May 2019, 43 percent of Americans who own a smartphone believe their phone is recording conversations without their permission.
If 43% assume their phone is recording conversations and that without their permissions, imagine the % that assume something way easier that use less battery/power and other is going on or that at least actively listen without actually recording for voice tone and keyword.
Study/poll and my experience is that virtually everyone assume being listened too and if they buy a really cheap intelligent weight person that come with an app that force them to create an account, amazon smarttv device, roku, etc... I would imagine that most assume they are more spied with more complex ways than they actually are. Do really most people you know in 2020, when they buy the cheapest smarttv that give free streamed content on it, that there is zero spying going on ?
I think that something people like to believe that they repeat, because the truth that people have a mix of not caring when they are not welcoming it and actively doing it.
Isn't what people know in 2021 much more relevant?