I think there's a lot of confusion over this topic because the general explanation is confusing. "XXX is encrypted in the browser" implies that XXX is encrypted

I think there's a lot of confusion over this topic because the general explanation is confusing. "XXX is encrypted in the browser" implies that XXX is encrypted because of TLS. Perhaps start with a statement like: "Private.sh sends all of your searches to a 3rd party search engine. These searches are private because we prevent the 3rd party search engine from knowing your IP or fingerprinting your browser. Private.sh can't see your searches because they are encrypted in your browser and can only be decrypted at the 3rd party search engine." "Thus, the 3rd party search engine only sees your search, not your IP or browser finger print."