Electronic Arts folder automatically saving to my Downloads instead of Documents

icedoatcoffee​  Yes, there are a couple ways, depending on whether OneDrive itself is running on your computer.  Please see the "I want to get rid of OneDrive" section of this guide, as it covers both options:

📓[GUIDE] [PC] Managing OneDrive | EA Forums - 12636625

Once Documents is back to the default location, see whether Sims 4 uses that location too.