You're wrong. South-west Poland (Silesia) belonged to Kingdom of Czechia in the late Middle Ages until 1525 when the Czechia lost its independence for the Habsburgs. After Austro-Prussian War of 1740-42 Silesia came under Prussian rule. So in character and style Wrocław is German-Austrian mixture (in spirit more Austrian because after II WW most of the population came from south-eastern Poland (Galicia, earlier part of Austria) taken after the war by Soviets. Poznań and Gdańsk are more Prussian in style, Kraków is Austrian and Warszawa indeed is Eastern Europe city (as a part of former Russia). Histoty of Poland is very complicated
Again, former cities of K.u.K Monarchy are similar in character and spirit, from Triest in Italy to Lviv in Ukraine. They all tried to be a smaller version of Wien, Budapest or Praha. And this is also visible until today.