I spent a few minutes looking at my search history (filtering chrome history by "google search"), and the vast of my queries are quite simple (e.g. people's names) that google does well on (in fact I find google search for people better than linkedin sometimes).
I also tried a few complex queries and compared them to Kagi:
"How much bitcoin does microstrategy own" -> Google returns the correct snippet from here[0] while Kagi only linked to articles about how much it acquired in the last few days.
"how to pronounce stratchery" -> Google returns the correct snippet from the Stratechery website[1] while Kagi's first result is a spam entry[2] with the wrong pronunciation (the second result is a tweet with the correct pronunciation).
I'd be curious to see more comparisons!
Edit: I just remembered Dan Luu's post (https://danluu.com/seo-spam/) but after looking through my search history, the queries he uses are not at all representative of my day to day searches.
[0]https://www.forbes.com/sites/digital-assets/2024/11/29/micro...
[1]https://stratechery.com/category/about/#:~:text=UPDATE%3A%20....