[rs186]

Gmail used to serve ads based on your emails for many years until 2017. https://www.npr.org/sections/thetwo-way/2017/06/26/534451513...

[skylurk]

And in 2010 they made https the default. Different times :)

[j4hdufd8]

I don't think https is responsible for that. Google owns the data, it doesn't matter how it is transported. It does, however, matter how it is stored (which I hope is encrypted in a way only you can retrieve it)