So I have a modded version of Baldur's Gate 3 on my steam account that is not allowing me to play multiplayer with my friends. I went on to GOG and purchased the game again in an attempt to run an unmodded version so that I could play multiplayer with my friends. This worked until we closed the game. Apparently while we were playing all the game data was saved to the modded version of the game in my steam library. Now when I try to open the game in steam or GOG, it opens the modded steam version and I cannot find an unmodded version anywhere in the GOG or steam files. Has anyone experienced this or know what has happened and how to fix it? I want to keep my steam version and GOG versions completely separate from each other but my computer keeps merging them to the modded steam version of the game. HELP!!!!

So you have two copies of BG3 installed? That's a huge chunk of space... too bad can't inode link identical files like with linux extended filesystems...

Anyways, I'd say ignore whatever launcher your're using, use explorer and go to C:\GoG Games\Baldur's Gate 3 whatever the dir name is and find the exe there. You'll likely find a shortcut that will run the game, otherwise there might be a bin folder with the game as well (which i notice sometimes Unreal Engine uses). If the shortcut is there, just copy it to the desktop, that shortcut will run the game in the correct way and you won't confuse it with the steam version. (The shortcut is affixed to point to the c:\gog directory)