Cant tell how common additional days above the minimum leave are in NL (you'd need to know these numbers). But even if you consider the usual five to eight days

Cant tell how common additional days above the minimum leave are in NL (you'd need to know these numbers). But even if you consider the usual five to eight days it would come as a surprise to me if it really was common to take off an entire month in one go as even then one would be barely left with any remaining days (as compared to none before). Some people will certainly do it, but not everybody.