I wish I knew more about those countries, I've heard similar things happened starting at the late 80s. It's almost as if they had a recipe for cultural annihilation, once you break the spirit of a nation all you have is atomized individuals highly manageable for foreign Capital.
There is one particular story a good commie friend of mine likes to tell, he worked at several radio stations and in the music industry during the 50 to 70s period, he saw how the dictatorship governments applied censorship to Tango and Folklore as a tool to neutralize any subversive expression while allowing American record companies to take control of the market, distorting the artists work to make it "more marketable", introducing foreign trends. That's when I understood his distaste for rock music. Not all rock of course, but the bland, harmless and simplistic version of it.
A lot of good artists had to exile the country and some took bad decisions giving in to the big records demands.
I have a few books on the waiting list (by Polanyi, Unamuno and Yuk Hui) but I keep getting distracted distrohopping to KDE plasma distros. I've already tried Kubuntu 24.10 and had some compatibility issues. The more I use Ubuntu, the more I understand why the glorious Linux Mint exists. I've also installed another partition with Fedora KDE just to play a little with non Debian based distros. Only time will tell if I go back to the always loyal Cinnamon Mint.