My theory is that, despite their rhetoric, the EU is actually okay with monopolies. Monopolies are easier to extract rents from, in the forms of fines and taxes. It seems like the EU would rather have a single Facebook, a single YouTube, a single Google, etc. than many competing smaller firms.
This does a very good job of explaining how small content creators are practically powerless now on the web in terms of protecting their content being stolen.
The whole point is to put content exclusivity back in the hands of traditional publishers.
How does it apply to ISPs by the way?
(At least, I think that's what parent was getting at, not saying I super agree with it).
Still, advertising is a Red Queen's race; once a party achieves some advancement (like animated ads, video ads, tracking, etc.), everyone else has to follow suit. The relative situation of player is ultimately unchanged, but the baseline is more user-hostile. So there's plenty of possibility for regulators to simply roll adtech back to 1990s, and advertisers would still make their money.
And let's not forget these ads are all clamoring to make people spend money on things they "didn't know they needed", so it's not like they're materially doing someone who is very badly off any favours.