Google want to know everything about you - Now, it looks like , Microsoft wants to know what Google knows about you or , Is it the good old Embrace, Extend and Extinguish Strategy.

After a quick setup process, you simply link a Google Account to an Outlook.com account, and Gmail, Drive documents, and Google Calendar will all be automatically displayed inside Outlook.com on the web.

It looks very similar to how Outlook for iOS and Android work, with separate inboxes and side-by-side integration in the calendar.

https://www.theverge.com/2019/11/20/20973889/microsoft-outlook-web-gmail-google-drive-calendar-integration-support-features