when a new ad comes up on social media and you backtrack to what your phone must have spied on for it to "find" you

maybe google "hajj 2023" "how to convert to judaism" and "diwali candles" ?

not a bad idea

there was a web privacy app I read about years ago that instead of engaging in the arms race of protecting you from profilers, it silently did lots of random searches to make your data meaningless

It's still out there: https://github.com/essandess/isp-data-pollution