Google rolls out Gmail end-to-end encryption on mobile devices(bleepingcomputer.com)
bleepingcomputer.com
Google rolls out Gmail end-to-end encryption on mobile devices
https://www.bleepingcomputer.com/news/google/google-rolls-out-gmail-end-to-end-encryption-on-mobile-devices/
Unless you do not trust Google themselves to not use Gemini to train on your emails.