I do see Fastned growing considerably.
4 years ago I drove my car from Dordrecht to Assen, where I came across 1 charging station from Harderwijk to Assen.
Drove to Emmen 2 weeks ago, with the same car, but now you also saw beyond Harderwijk, every 2 gas stations there is a fast charger. Usually from fastned, but also some other suppliers.
Also on the navigation map there were quite a few fast chargers near the highway (at a McD / BK / KFC, at the Ikea, etc).
No, in the Netherlands you don’t have to have range anxiety in that regard. Ordinary (but that also applies to petrol or diesel cars) a well-filled cut to recharge / refuel along the highway.