Earlier quoted context omitted.
It does have findings, it’s just a long article. Maybe longer than it needs to be. Looks like their SERP ads CPC increased by 30% and conversions decreased, display ad conversions plummeted (partially offset by cheaper CPMs) and YouTube ads switched to optimize for watch time instead of conversions seemed to perform better and lead to cheaper conversions.
The one number that should be of interest to anyone who's not a professional "growth marketer" is missing, though, don't you agree? I skimmed the whole article, read your posting, and even though I know some of these words, I still have no idea if the decision was hurtful to the business, or if it did not move the needle at all, or if it even was a net positive, all things considered.
It's incredibly hard to tell. For us the goal of eliminating Cookies was important given the stance we have on privacy so everything went from there. The folks working in marketing for sure were not happy with the directive as it makes their job much harder.
But the world is still spinning, even without cookies. That's enough to call this a success.