How to undo "control + command + 5"?

VikingOSX wrote:

If you mean shift+command+5 to bring up the screenshot utility interface, you can dismiss it with the Esc key.

👍

And you can change that shortcut if you wish: Use macOS keyboard shortcuts - Apple Support

If you mean shift+command+5 to bring up the screenshot utility interface, you can dismiss it with the Esc key.

What did it do? It does nothing on the Mac that I happen to be using at the moment.