This is not a true statement. If you have a DSP license, Device Profiles for all supported laser systems can be shared in LightBurn. If you have a GCode license, you can Export/Import all supported GCode system Device Profiles. In all cases, no connection to a laser is required to do this.
You need to have the same configuration on both systems for the file sharing to work as you’d expect. If you do not have the same profile setup on both, things can view and produce flipped and worse, set fire to something due to the file settings. You will also want to copy any Library files, Material (.CLB) and Art (.LBART), and duplicate any fonts you will want to have access to from both systems.