It's clear the company hasn't given this icon more than a few ... Copilot are not the same thing. Microsoft 365 Copilot is Office, which consists of Word, PowerPoint, Excel, OneNote, Outlook ...

Microsoft 365 may get all the attention, but the classic Microsoft Office suite also gets useful additions in every release.

This includes Microsoft Office suite of desktop applications including Word, Excel, Publisher, PowerPoint ... the page (next to your name), go to the gear icon (settings) then Your app settings then ...