Is it possible to install the Raspberry PI Desktop image as a base OS for the RAK7244 LTE firmware?
According to https://github.com/RAKWireless/rak_common_for_gateway it should be Raspbian Lite but is there any limitation with the Desktop image?
Yes, it is possible to do this. The difference between the Raspberry Pi Desktop image and the Lite one is that the Desktop image has GUI on it. We recommend using Raspbian Lite to avoid overloading the hardware by the GUI as you don’t need it for the gateway, but if you need to you can install the Raspberry PI Desktop image.