Earlier quoted context omitted.
In germany there is definitely no free healthcare. It is just, that when you are employed, your employer has to pay it. When you freelance or are a student, or unemployed you definitely have to pay for it. But in a nice way, based on your income.
If you are unemployed or a student you have no income.
But even if you have no income, you still have to pay for health insurance(lowest fee). I know that quite well from some time ago. You also cannot just quit health insurance, as long as you life in germany.