Had earlier version of Linux Lite and wanted version 5 but install has been problematic. Balena's Etcher was an issue before; I prefer RUFUS. Kind of silly to have such an accessible OS use etcher as a delivery program for bootable USBs; ETCHER's explanations and support are either non existent or not really for beginners from Windows platforms. This doesn't fit Linux Lite's intended goal. My advice: ditch Balena Etcher and find another means for UEFI support
Linux Lite