>>17850982 (OP)Today? Nigh impossible to say. In the short term: Most likely the UK and France would face communist revolutions which would inevitably cause a second world war. Who wins there largely comes down to the extent that Russia is able to rebuild and which side the USA takes. Long term success for Germany largely comes down to being able to form a unified Europe will keeping the Americans out and Russia down. Anything else will largely either result in a USSR style collapse of German power after a long cold war, Germany largely becoming a secondary partner in a Anglo-German alliance, or a third world war blowing up the planet.
In general Europe would probably be a bit more conservative, but not to a massive extent. Unless Germany got a insanely clean victory it's fairly likely the European colonial empires are still effectively finished. Countries that are nominally friendly to Germany but still fairly democratic, like the Netherlands or Sweden, would most likely largely follow similar patterns to what they did historically culturally. Nazi Germany not existing would probably mean nationalism and anti semitism are more nominally acceptable, though the former would largely be done in the context of a larger pan European project maintained from Berlin (Basically think the EU but they shoot you if you try and do Brexit).