Plenty idk. Could be that high earners really like reporting about their salaries? I mean it must feel much better to go into a salaries website and tell everyone you're making 200K than it is 70K, so it could be biased upwards.
Truth is these Dutch companies don't have to pay that much - so many people from all over the world want to work there 80-100K is more than plenty. Maybe super high management will get 200K.
That's possible, but if Amsterdam has big name tech companies, Booking and Adyen are definitely it, so perhaps it makes sense that they pay more. Sadly I'm not that interested in working for them; Booking uses way too many dark patterns for my taste, and I've been to Adyen's office, and they had dozens of programmers working in a single noisy room. That didn't appeal to me at all.