[dathinab]

> Disclaimer: I don't live there, I don't know the details.

exactly

it's digital available in a app _or chip card_

in both cases it's not tracking where you go, you don't check-in/out when you enter leafe a train, their are no "gates" in (most?all?) of Germans public transportation systems. Instead it's a trust based system where sporadically randomly personal will check if passengers have valid tickets. At which point you have to show your ID and card, but that's it. And that you where checked also doesn't get recorded. But even if they would this checks tend to be somewhat rare to a point that some people decided it (was) cheaper to not buy a ticket but pay the fine from time to time.