Too many annoying popups have trained me to, by default, react to popups as I react to flies or mosquitos.
As I can't tell which category a popup is in before I've read it, this makes me extra angry about the time-wasters.
Personally, I find the multi-page terms and conditions to be the worst part. Nobody reads them and it would be considered entirely unacceptable UX if people really did read them. Their entire purpose is to hold people to terms they aren’t aware of.
Whatever the intentions of that law where, and however against the spirit of it the companies implementing the ‘we care about your privacy’ popover whilst offering the option to opt out of data sharing with their 500 ‘partners’ - the law has failed in this regard. Perhaps even all these sites are breaking said law, in which case I am sure enforcement will be swift and firm.
Of course if i was evil corporate drone and would like to piss of EU and had means for that, i would show this pop up to choose browser regularly and unexpectedly to piss off end users and then blame it on EU that they have "forced" to do this.