This method will work until Vortex gets an update. Using Vortex, switch to a blank unmodded profile. Download the FOLN to a temp file. Zip up the contents of said temp file. Add it to Vortex. Choose the "unpack as is" option. Choose mod type "engine injector" and deploy.

Remember to use the ini files that come with FOLN. After you download the mod to the temp file, they are located in the "__Config" folder. Copy them to your \Documents\My Games\Fallout4 folder. Remember to backup your original inis before you copy over them. You will need them if you switch profiles or uninstall FOLN.

It takes a while to install, but it does work and is easy to revert to your original profile, if you want. I was able to start the game and get past character creation. You can delete the temp folder once FOLN is added to Vortex to save some disk space. Will play further tonight. I assume MO2 has similar capability.