If while using the nRF Connect for Desktop you are seeing this message on the log
Failed to get the library versions: JLINKARM_DLL_COULD_NOT_BE_OPENED (Origin: "Failed to get module versions.") Unsupported device. The detected device could not be recognized as neither JLink device nor Nordic USB device. Please make sure J-Link Software is installed. See https://github.com/NordicSemiconductor/pc-nrfconnect-launcher/#macos-and-linux
Make sure to installe the Universal JLink Segger from www.segger.com/.../