Both can be true. Google pays as much for zero days, and Google prioritizes security and privacy less than Apple does.

Google's very means of income relies on gathering and to an extent sharing your personal data.

I'm not talking about what Google pays for vulnerabilities. I'm talking about black markets & brokers.

Edit: and "Android" as in the AOSP (where PWAs still function) does not sell data.

isn't this because so many researchers invested their time in apple zero-days there was a flood of vulnerabilities, reducing their value? I always had the impression ios devices were the prime target.