But it's not techncially a recession. It's worse, it's actually Stagflation because inflation is also high sitting at 6.0%. They probably don't want the general public to know what caused the Stagflation and keep blaming it on the "supply side" of things.
https://think.ing.com/snaps/the-netherlands-in-technical-recession/
Another country, Hungary, has also announced to be going through the longest "technical recession".
https://think.ing.com/snaps/longest-technical-recession-on-record-in-hungary/
But like the situation in the Netherlands, Hungary's inflation is very high at 20%. That's true Stagflation - a time when the monetary and economic systems are out of control.
Who is this "they" who "don't want the general public to know"? In free societies, unlike in places like Russia and China, information is readily available from all sorts of different sources for anyone that goes looking for knowledge. Recessions are a natural part of the economic cycle and you'd have to be pretty dumb to think that they are not or that it's shameful to be in one, only people who sap up rubbish from leaders like Putin or Xi Jinping would fall for this mistake. Inflation is happening in varying levels in countries all around the world, so again it is nothing special to be happening in the Netherlands and is actually a pretty normal situation to be facing right now, that will recover.