I don't use protonmail for security although I know it is advertised as being a secure and private platform. I use it because they don't read my emails to perso

I don't use protonmail for security although I know it is advertised as being a secure and private platform. I use it because they don't read my emails to personalise ads they show to me and they also don't own the biggest (or second biggest) ad platform on the planet.