I wonder how long Google and Cloudflare retain this kind of data, and whether the retention differs between things like clicking a search result versus pinging

I wonder how long Google and Cloudflare retain this kind of data, and whether the retention differs between things like clicking a search result versus pinging a Google ad tracker when you visit the site itself. With the request for associated account data, being logged in to Google or Facebook while browsing the entire rest of the web (thanks to the ubiquity of both of their ad networks) becomes even more of a liability than it already was.