A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Are you using the desktop installed Microsoft 365 programs? Those programs are the ones I have that demonstrate the intermittent failure of the web-based Help functionality. The only megaphone I can find in those programs is when I click on File then then select Office Account. In the resulting window a What's New button with a megaphone on it is available. The problem still persists though it seems a little less frequent.