Absolutely nothing about fraud in these. Interesting, considering who or what would validate that these actions are occurring in front of an actual user.
Thanks for the link, and also thanks to the ancestor commentors for sharing more information.
Although I understand that the revenue and reality of marketing revenue is vast and in some ways unstoppable, this is quite a bit of complex and challenging engineering work which creates more surface area in browsers in return for privacy.
It's probably worth it on the whole, as long as it's done carefully, but for someone who cares a bit about simplicity, efficiency and being able to comprehend what's happening: will there be an opportunity just to disable targeting advertising (and thus the code paths and logic associated with it all)?
(I'll try to reason about this and work it out myself from the documentation; I do already see that there's a "Disable Ad Interest Groups", but I don't know if that's quite it, yet)