[FO4] Fallout 4 Base and FOLON

Hi everyone!

Real quick question, can I have both the base game and FOLON at once? I own the game on Steam and GOG. I don’t use mods. Couldn’t really find anything about if I can do this without using a mod manager. Is it as simple as install both, install FOLON to the GOG version folder, and be careful with saves since they are in the same spot? Thank you!