I have seen Microsoft employees say many contradictory things about the Copilot offer boxes that appeared in both Github and VSCode (the VSCode box can also be disabled in Settings) over the last month, so I'm not sure this is true, but an MS rep in the Community thread about this *seems* to be saying this disable box was originally supposed to be present, but due to some sort of error they made it so you could only get access to the Copilot disable box by signing up for Copilot first (??) (???)