Honestly the thing that annoys me the most about this isn’t the privacy aspect. It’s the fact that they called it “new outlook”. Which means now at work I have to explain that no, this isn’t real outlook it’s just MS being useless wankers and not being able to come up with a new name for a new product. See also, teams vs teams for work and school. They did the same thing with Skype and Skype for business back in the day and still pisses me off.