Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
They've totally embedded it in the apps & there is no off setting for it.
Seriously vile move by Microsoft.
If you go into your account and find your subscription you'll find that without your permission you've been upgraded to a more expensive subscription that includes Copilot.
Switch it back to a regular sub & it will go away when your subscription renews.
I'd like to know how to wind back to a non-Copilot version now, rather than waiting.