Dh is Dutch, and I love Holland.
But I would say that I had culture shock moving there.
I have lived in several countires overseas, Middle East, South East Asia, Cebtral Asia, but the only country where I have ever struggled with culture shock was Holland.
I am pretty sure it was because Holland is superficially very like England, but when you scratch the surface, it isn't.
I was living with dh family, and immersed in an all Dutch environment, and learning the language, and I was constantly on the back foot. Lots and lots of little things which are different.
It is lovely, kindergartens lovely, towns beautiful. Expect to get a bike and cycle everywhere (where I lived that was the only way into town)
kids clothes expensive as they don't have the supermarket level clothes.
shopping different. Big out of town supermarkets with everything but the kitchen sink aren't really a thing.
Superficially very tolerant, but actually very conformist.
(dh really like our front garden to be tidy and weeded as Other People see it)