Plug-in hybrids are really good! You can likely do 90% of your driving electrically and still have a long range when you need it, and they're cheaper than full EVs.
You can probably just disable all connectivity settings. Even bluetooth connection will require you to agree to some bullshit before using, so you may even need to get a separate bluetooth device or connect it with a wire
There are devices installed in practically all cars that monitor your driving conditions that are retrieved by cops. Im not sure how you disable those without disabling your entire car. Essentially it's a black box like the ones on planes.
I'm pretty sure you can still like not pair it to your phone and just drive the thing, I don't think any absolutely require you to use your phone, you just maybe lose out on some infotainment features.