Just for any future mea culpa, I'd recommend not hedging with comments like this one:
> As folks mentioned here - many similar tools do this as well.
It's really doubtful they have the same behavior people are complaining about here: namely including the authored by Copilot statement when it wasn't used (or even enabled).
Anthropic does by default. I had to put “no co-authored by lines in commits, ever” into my global settings.
That’s pretty close to “included when it wasn’t used (or even enabled)” since it’s opt-in by default and you have to explicitly say no. It’s not even clear where to turn it off, I just rely on the AI to figure out not to do it.