I have never seen a single ad online, except may be for one moment the ad blocker malfunctioned. I am certainly an around 0$ ad value user for Google. So some must be much more than 1605.

I forget how bad the internet is without an adblocker until I use someone else's device at which point they get inducted into what an adblocker is via "You want your web experience to be more pleasant?"

It's gotten to a point where if I can't run an adblocker like Ublock Origin I won't use the browser/device (I still need to look at DNS level blocking but everything I use runs FF so not super pressing).

Chrome (and derivatives) are only installed for testing stuff, FF for all it's sometimes questionable UX and AI crap (which can at least now be disabled with a single toggle) has been my default for a long time and is still for that reason.

In fairness though, I don't use many google products any more either (YT (with an adblock and sponsorblock) mostly).