It doesn't surprise me that some things are considered OK in Russia but not Germany, because Slav culture is quite different compared to the mixed Aryan/African culture of Germany.
Post-Hitler Germany is a cuck state that feels the need to censor anything it deems harmful to the masses. The Kremlin also does this, but for different reasons and different end goals. But as to why it seems like a shocker that Russia allows access to a website that Germany blocks, I think it comes down to how a lot of people view Russia (an imperialist dictatorship and the root of all evil) vs Germany (a free country that does no wrong and the leader of the EU). Russia has a vested interest in controlling the narrative domestically, so if something isn't seen as antithetical to Russia's plans of world enslavication there's no reason to block it. Germany, on the other hand, thinks that if they make some content illegal, that means that things like mass shootings and terrorist attacks will be less likely and the Fourth Reich will never happen.
Neither one has freedoms quite like the US has (we generally don't block websites at the government level), and although mass shootings are way more common here (easy access to guns) and terrorism also happens here (it happens everywhere in the free world) the American neo-Nazis haven't really gotten any traction despite trying for over 80 years now, and actual Nazis were given a new life here by way of Operation Paperclip and somehow the US government has managed to remain a republican democracy. This despite the ideologies of Nazism, as well as Communism, being legal here.
