Re: sims 4 mods folder not present, but mods still working
@LillMopl Mods need to go in Documents > Electronic Arts > The Sims 4 > Mods, not inside the game's program files. The only (safe) way to move your mods and other user data to an external drive is with a symbolic link; otherwise, the game won't know where to look for your mods.
Please let me know how you moved the Mods folder, but don't do anything else yet. Instead, try adding a new mod to the Mods folder in Documents (as above) and let me know whether it shows up in-game.