It depends on your device manufacturer. If all of your RGB backlighting in stored in your BIOS and persists through reboots, then you can dual boot your system with Windows. In the Windows partition, install all the apps the manufacturer provides and change the lighting configuration from there. Boot again to the Linux partition, and your settings will still persist. The primary drawback of this trick is that you have to continuously boot Windows to change small configurations. This trick works on Asus TUF and HP Omen laptops.