They stopped scanning emails for ads years ago: https://blog.google/products/gmail/g-suite-gains-traction-in-the-enterprise-g-suites-gmail-and-consumer-gmail-to

They stopped scanning emails for ads years ago: https://blog.google/products/gmail/g-suite-gains-traction-in-the-enterprise-g-suites-gmail-and-consumer-gmail-to-more-closely-align/#:~:text=Consumer%20Gmail%20content%20will%20not%20be%20used%20or%20scanned%20for%20any%20ads%20personalization%20after%20this%20change https://blog.google/products/gmail/g-suite-gains-traction-in... Of course, computers are very complicated and it's effectively impossible to personally verify all the software you use, but: 1. They'd be exposing themselves to large legal liability 2. to enable scanning they don't really need (they have lots of other ad targeting methods) 3. on an application likely to be examined by other security researchers to verify Google's statements 4. while also risking any employees who feel this is an ethical violation leaking this (Sure, not all employees would, but you would have to form a secret group of employees to scan, process, and utilize this data while vetting that nobody would leak this, in a company which ostensibly promotes itself externally and internally as ethical.)