Holy shit, thank you for posting this! That fucking Copilot button has been driving me crazy in Excel!

If I had my way I’d be using LibreOffice or some other open source alternative. But I can’t on my work machine.

Only that turning connected experiences off also disables onedrive integration and certain extensions. I tried this a while ago and after a couple days had to turn it back on.

But disabling copilot in “authoring and proofing tools” works.