It's the fastest secularizing one, though [1]. And, with recent sexual abuse reports and the success of a related movie [2], I sense we're on the verge of an outbreak of an unprecedented wave of anticlerical rage.
While that's true, there's a long tail of older people still trusting the Church a lot and there's a knock on effect where children are still sent to learn 'religion' at school. I think it will be some decades before the society becomes truly secular and not sure if that's better, the only thing that's replacing religion right now is consumerism, which IMO is even worse for keeping the society as a whole...
Spot on comment. I'm not religious but I believe that religion makes more good than harm in Poland. I've lived there for 5 years and peacefullness is remarkable.
[1]: http://www.pewforum.org/2018/06/13/young-adults-around-the-w... [2]: https://cruxnow.com/church-in-europe/2018/10/06/church-in-po...