Notice that Consumer Council's page is about selling a house without a real-estate agent. In the US, buyers also have a real-estate agent. In Norwegian and Danish (and presumably Swedish too), they are known as «mekler»/»mægler«, i.e. mediator in English.

In Scandinavia, at least, only sellers hire real-estate agents, buyers at most hire an attorney (which they probably should anyway).

I am personally on the lookout for a house in Denmark, but have not closed (or come close to) a deal yet, since it's not urgent. But my general perspective is that the housing markets in Scandinavia are very different from those in the US.