https://www.microsoft.com/en-us/microsoft-365/microsoft-offi...
"Office is now Microsoft 365, the premier productivity suite with innovative productivity apps, intelligent cloud services, and world-class security. Office.com, the Office mobile app, and the Office app for Windows are combined in the Microsoft 365 Copilot app—with a new icon, new look, and even more features."
You can count on Microsoft to mess up their marketing message in the craziest ways. Why stick with the best-known productivity software brand on the planet when you can call it "365 Copilot"?