Google has started automatically opting you in to let it read your stuff to train AI. You need to turn this off in SEVERAL places in your settings (not just for Gmail), if you want to maintain privacy and confidentiality. www.malwarebytes.com/blog/news/20...
Gmail can read your emails and attachments to train its AI, unless you opt out
A new Gmail update may allow Google to use your private messages and attachments for AI training. Here's how to turn it off.