I spent most the spring, summer and autumn working in Germany, Finland and Russia and it was an interesting experience.
The Dutch are quite anti-German when it slips out, from experience I've had with them. They don't generally say much about it but it's certainly there. Interestingly enough my late father was quite anti-Dutch, having served there in 1944-5; it's one of the things they don't like to discuss, but Holland had the largest pre-war Nazi party outside Germany and the Germans raised two full divisions of SS troops there ( most volunteer foreign troops raised by the Germans were classed as Waffen-SS units ).
The French are, well, French. I did note on a trip through SW France in 2002 that the French are now finally putting up plaques commemorating Resistance fighters shot or handed over to the Germans by the
milice ( Vichy or other collaborationist gendarmes ) or other French nationals ( mainly Jewish ) deported to Germany by other Frenchmen. They have little to be proud of about WW2 and they know it.
West Germans, don't really know the place or the people. However it's true that the legend of the "Dolchstoss" ( stab in the back ) of 1918 is alive and well...
The East Germans tend to be much less fixated on the war generally because they have had the subsequent experience of Soviet conquest, collapse of the Soviet Union and re-unification. Generally speaking they are ok but I tended to find them a bit post-Soviet; they love beaurocracy and have little idea of actually DOING any given thing at times.
I did go to Peenemunde, which frankly is disappointing, there is little to see apart from half-demolished concrete structures, much overgrown. The remains of the huge RAF PoW camp at Barth are clearly visible, although not accessible, and the other camps around Pomerania are largely returned to agriculture.
The Russians can be stridently anti-German at times, especially the older ones. Unlike the Dutch they don't need to pretend they are political allies now, and they don't. Political Correctness is quite unknown in Russia, which is quite amusing up to a point; the Russian-in-the-street is rather like the British working man in the 1960s - they have no real racist sentiment because they rarely meet non-Russians and anyway have other things to concern themselves with.
However there are deep scars from the Soviet Afghan war, the comparison with Viet Nam for the Yanks is quite apt in some ways. The Finns are also regarded askance, the Second World War ended with a land-grab in the Karelian Peninsula which still hasn't been resolved and a DMZ is there to this day. That said, Finnish tourists cross it by the coachload to spend Euros in Vyborg and St Petersburg ( actually I would think that to Finns , London looks cheap 😮 )
Russians are also divided into Soviets and post-Soviets, broadly speaking; especially ex-servicemen, which is most Russians over 40 really. The older ones tend to remember the Soviet period with nostalgia, for understandable reasons. I spent some time working with one of the older chaps and it was thought-provoking; he had, for example, read One day in the Life of Ivan Denisovitch in the 1970s and dismissed it as being unrecognisable.
I was in Vyborg for Navy Day, and a lot of older men were wearing caps, medals and in some cases telnyashka, the striped jerseys worn by various branches of the Soviet and Russian forces, especially sailors and marines.
''the stopes soared beyond the range of our caplamps' - David Bick...... How times change .... oh, I don't know, I've still got a lamp like that.