PS: gabber isn’t actually a genre as such ; its slang in an ancient Amsterdam dialect for “mate / friend” which is actually borrowed from Yiddish and was more to do with a lifestyle about DIY culture; squatparties etc. The way we call this music “gabber” in English is a bit like calling pilsener beer “lager” when that is actually what the beer is stored in rather than the drink itself.

what also happened since the 90s is the term “gabber/gabba” got a bad reputation in NL as it was briefly hijacked by hard right wing (same as how skinhead culture was in UK in 1970s/1980s) although the real gabber / underground scene is of course very multicultural and tolerant. I think the music still exists but it is to some extent rebranded as “hard tekno”. Another factor is in NL it has been diluted a bit by more commercialised hard dance / hardcore.