Office.com is becoming the default start page for all Office 365 commercial users
"Currently in Office 365, there is a setting that allows users to personalize what page they land on when they log into Office 365. Office.com has evolved to pull a user's most relevant apps, documents and places where they are working —all in one place--and consequently will be the default page a user lands on when signing into Office 365 at Office.com"
This enhancement is related to Microsoft 365 Roadmap ID 45971.
Questions? Please send your questions or make an appointment today for a consult via email to firstname.lastname@example.org