Make some progress. I ended installing 20.3 Mint along side the old one and that at least got Lightburn working. It will not recognize my laser so have more rabbit trails to follow to attempt to get that element going. Seeing it’s a common thing with Linux not being able to recognize laser cutters so I may end up forced to still use the windows laptop just for the cutting part and do the design work on my main system, now upgraded.
QinHeng Elecronics HL-340 USB-Serial adapter is what appears to be the laser, unplugging the usb from it, it goes missing so at least have it somewhat pinpointed, so it’s not ghosted or something.