Your question can be interpreted a couple ways.
1st interpetation: The GF has no capability to laser without the Cloud S/W. Nothing happens.
2nd interpretation: Unless you are doing something extremely simple, like using the trace function, all of the design work is done by you on your own computer, with your own S/W. The GF interface, as we understand it, will have no image or design manipulation capabilities beyond possibly rotate, zoom, position, laser depth control, etc. The user interface is where you upload something you have finished and properly adjusted to match the laser capabilities. The cloud S/W may have many special cool capabilities but it’s primary function is just to convert your uploaded image to something the laser understands. and then control the device.