Standard Univ courses (at least in science and economics) are way subpar compared the same degree pursued in schools or high-end universities with a competitive

Standard Univ courses (at least in science and economics) are way subpar compared the same degree pursued in schools or high-end universities with a competitive exam in France. Source: I did an engineering school and did one master in university. However, I liked more the atmosphere in University. Also, most private eng schools are crap though they're quite expensive. So it doesn't seem that tuition have an incidence on quality, at least in France.