Take the last search ("bronze patina thickness"), where I wanted to know how thick a typical bronze patina is. The first brave result is a hardware store in Spokane (not even my state!) that sells door latches. The rest of the page is SEO content about watches.
The first result on Google links a paper and the results excerpt tells me 40-50um, up to 70um with prolonged exposure. The performance still isn't close for me despite the clear decline in Google search quality over the years.