Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
I don't mind it being available to use (with a toggle to turn on and off) like any feature (like autocorrect).
Microsoft wants everyone to use it because every input trains the Large Language Model. Every time you use Copilot you're a defacto employee of Microsoft—making their product better and more valuable.
Autocorrect in Office is almost as annoying, but at least you can turn it off. But it constantly turns itself back on. It's always on by default, and in the online apps you have to turn it off every single time you use it. It's on in every office app and turns itself back on with nearly every minor update for no good reason. It just refuses to stay off. I have turned off autocorrect in Office at least a thousand times over the years and I'm not exaggerating.