Same thing in the Nordics. What is right next door? The Soviet Union, with a successful revolution that brought millions out of abject poverty and brought USSR from a feudal backwater to modern superpower within decades. The fear of that spreading caused Nordics and elsewhere to give more concessions to the working class. The form of Capitalism itself hasn't changed one single bit. There's still wars, worker exploitation, imperialism, global extraction and exploitation of the 3rd world (global south), etc.
I'm guessing you're American given your piss poor knowledge of world history.
Because no, the Nordic countries did not give worker concessions because the USSR next door.
First of all, the conditions of the USSR were not seen as good by basically anyone. Do you know how many mass purges happened in communist countries and how poor they were? It was not seen as a glowing ideal in Nordic countries. East Germany was not seen as paradise compared to West Germany by literally anyone.
Second of all, this ignore the enormous concessions, changes, and progress that Nordic countries made since ether fall of the Soviet Union.
Your analysis of capitalism is just black-pill edginess. Congrats on being a "nothing can ever be done to fix this" nihilist. Billionaires love people like you.