Regarding the rosary, I would rather guess Warsaw being the seat of government attracts lots of fringe types who come there to protest. I've last been living there in 2019 and I remember that the political climate was already heating up back then, with religious groups protesting in various places spontaneously - groups with loudspeakers at entrances to public transit, trucks driving around blasting anti-gay slogans all day, random marches of people in knight gowns carrying that certain picture of Jesus in a lavish crown that's a dogwhistle among certain ultra-religious groups - I've seen all of that, and still I would consider Warsaw to be overwhelmingly liberal in comaprison to the rest of the country.

One exception is the city's football team of course - but football in this country is synonymous with ultra-nationalism.