Yes, whilst you do have a telemetry box, it is not phoning home. Data must be actively pulled from it by hand. As you know, typically this is done after an accident to better tell what the car went through. I know there are people who have sought to disable the boxes, but I don't know the legal or insurance ramifications of doing so. It is also difficult to locate them as they are "hidden" in the mass of wiring and other components. There are probably manufacturer-specific auto forum discussions on the matter to refer to.

Precisely because the government drags their feet with proper regulation is why we are here

The corporations keep eroding your rights to own anything in the contracts they make you sign (to buy a car for example)

They reserve the right to turn features off or hide them behind paywalls without your agreement ... They reserve the right to spy on your with sensors you paid for and sell the data to whomever they want without compensation to you or liability over the consequences of that data being out there

They reserve the right to terminate your warranty if you do anything to your car they do not approve of

These measures literally dilute what "owning a car" means... This is what people refer to when they say ownership is coming to an end. It doesn't mean you can't have a car... It means the car is not quite yours and may be doing more work and money for someone else after you nicely paid for it

Is it different for used "newish" cars? Or were you referring to used "pre 2018" cars?