Earlier quoted context omitted.
Pointing a permanent security camera at a public space as a private person really is illegal. This is different from occasionally using a handheld camera. Because one is surveillance that is meaningfully different from what you could do just by watching someone, and the other is not (this is my argument, not sure whether this is the legal argument in NL)
Well that scenario is prohibited by the GDPR (though I’m not sure if different authorities would have differing views on that). But the statement that you cannot film public scenes or the people who happen to be in them is simple false.
You could read this as something else, but IMO it was pretty obvious what I was referring to. And for static cameras I'm entirely correct. For other cameras there's been various new restrictions for them as well.
Your summary of "cannot film public scenes or the people who happen to be in them is simple false" for one distorts what I wrote, secondly, if you do this with a static camera, you will have a problem and your statement is _not_ true. Friends had a "crazy lady" with cameras pointing at public space. It took a while, but eventually the cameras were removed. Something similar you can find via Google, plus (work) building security mentions the same.