Without looking up any sources, I would say that Google is even more pervasive. I would estimate around 80-90% of the websites include some kind of Google tracking.
I have been using DDG on mobile for about a few years. It shows you the most blocked trackers and google is by far the worst. Google trackers were found on 31% of websites I visit whereas Facebook trackers are at 4%. My results may be skewed because I never visit or view any content on Facebook, but I do the occasional google search when I can’t find something.
Only 31%? Are you sure? I mean, I block all Google domains, including fonts and stuff, but 31% seems low. Does that count things like fonts from Google domains and other things that could be used to track users? It feels like whenever I check my ad blocker's block settings for a page, I see Google stuff.
Note that this is on mobile where my searches aren’t all that unique. I mostly visit HN and a few other sites daily. I guess if you want more realistic results then I should look at my pc. I visit a lot more sites when researching/coding so that would be more accurate, but I don’t have the extension installed.
I'm not using DDG but I have checked how many sites use Google facilities which track. A lot more than 0.3.
Are you counting Google Analytics as tracking as well?