I've been looking at post-Soviet architecture for decades, it's still broken by the prolonged Soviet rule with its central imperative. It's generational trauma, and it will take two or three more generations to recover from it: the sense of visual taste of all these people, previously cultivated over centures, was effectively stomped out, and they need to acquire it anew, which takes time and effort. The deeper you go into Russia, the worse it gets, but the ripples are seen far and wide. I posted some examples here. That last pic you provided is like a little baby compared even to your original photo from Bratislava.

If you want to see some really bad shit, check out Luzhkov's style and capitalist romanticism. Those are prime examples of the looks being dictated by people who have money but no taste, and this has been going on through the nineties-zeroes, having been barely attuned in the 2010s by some hints of attention to modern Western architecture. And low-rank officials on the ground, responsible for painting the buildings, are certainly much less likely to read 'Architectural Digest'.