These instructions will hopefully assist you to start with a stock LG G2 (Canadian), unlock the bootloader (if necessary), and then download the required tools as well as the very latest source code for LineageOS (based on Google’s Android operating system) for your device. Using these, you can build both LineageOS and LineageOS Recovery image from source code, and then install them both to your device.
lineage-16.0-20190422-UNOFFICIAL-d803.zip, which is the LineageOS installer package.