New cars with intrusive driver monitoring alerts are obviously going to be terrible but you can still buy vehicles made prior to this change.
I've heard that Dacia has some models that are like 2008 throwbacks, with "modern" annoyances kept to a bare minimum, but they're considered too low-market for the rental companies, I suppose. I'd consider that sort of thing if I were looking to buy a new car, money no object.
But really a well-maintained vehicle that's ~15-20 years old suits me just fine.
I bought the model with no internet connection, so the speed limit is automatically read by the front camera, and it's usually wrong. Although the alarm can be disabled, it still shows a distracting visual warning on the dashboard. I covered mine with duck tape, but now everyone who goes into the car asks me why I'm covering a warning with duck tape, and I have to explain them every time.
I converted the car into a camper, but some digital features are always on, even when the car is off.
For example, the car continuously detects the wireless key, so I bought some Faraday cage wallets to store them while we sleep. However, they don't work, so at the end I had to make my own Faraday cage wallets with aluminum foil and duck tape (yeah, in this project I found that duck tape is really versatile).
Another issue that really bothers me is that the car detects movement, even when it is completely off. Whenever I'm sleeping and I change position, the center screen lights on, some relays start to click, and some fan runs for a couple of seconds. Then, after ~10 seconds everything turns off again. It drives me crazy.
I got this car just because I wanted something shorter than 4.5m (but that could fit a 120 x 190 cm bed), with a reliable engine (this is a 1.6L from 2005, created by Renault & Nissan, without any known issues), and without internet connection. I reviewed hundreds of cars, and this was basically our only option in our country.