3x increase makes sense to me.
GitHub Copilot (the original copilot) is wildly popular amongst professional software developers, and is used more and more as it gets more powerful.
I suspect most of the original paying customer base are developers and they're seeing a 3x usage, primarily amongst them, with a small bump from users of all the other copilots.
The original Copilot is GitHub Copilot which is a coding assistant and it's very popular and useful for developers. I think most of the paying copilot customers and usage are coming from there.