Hey @maybemayday! I had the same issue and this is what I did to find The Sims 4 documents folder...
I hope this helps!
**Please keep in mind I am using Windows**
First of all, there are two Sims 4 Folders:
***If you are trying to add mods/CC, music, or save files to your game SKIP to FOLDER B***
FOLDER A: Includes downloaded Sims 4 game/packs. This is the same location as the screenshot you shared earlier in the forum. I added a screenshot of what mine looks like.
You'll notice in this folder there are several folders such as "EP01". These represent your DLC, for example, EP=Expansion Pack, GP=Game Pack, SP= Stuff Pack, etc. The actual Sims 4 game can be found in Game>Bin (this location is useful if you want to add Shaders to your game)
Pro-tip! If you want to locate FOLDER A go into your EA app>Library>Locate The Sims 4, you will see three dots at the top right of the game, click that> select View Properties> under Installed Location you will find FOLDER A's location.
FOLDER B: If you are looking to add or change content in your game this is the folder you want to find (see screenshot for Folder B). This folder can be tricky to find but this is my advice based on my previous struggles...
step 1: Select your PC, this can be named (C: ) or (D: ) or even another letter followed by ":"
step 2: Select **Users** (if you don't see "Users" look through your PC folders until you see it. It may be under "Program File")
step 3:You may see options such as "Alexa" or "Public". I selected **Alexa** and that worked for me (you may see your name there, select that. If not, it may be the default "Alexa" like mine). If you don't see any of these types of options skip to the next step.
step 4: Now if you have a pain-in-the-butt PC like mine you may not see the **Documents** option (if you do see it select it). In my case, you may see a **OneDrive** option, select this (Pro-tip: the OneDrive icon looks like a blue cloud. When you select this it may ask you to put in your Outlook email. If you get a bunch of pop-ups you can exit out of them and you should still be able to access the OneDrive folder)
step 5: Select **Documents** (if you haven't already done so)
step 6: Select **Electronic Arts**
Step 7: Select **The Sims 4** and you're done!!
Here is what the folder chain should look like for a normal PC:
C:/Users/[USERS NAME]/Documents/Electronic Arts/The Sims 4
Here is what a folder chain should look like for a stupid PC like mine:
C:/Users/Alexa/OneDrive/Documents/Electronic Arts/The Sims 4
Pro-Tip! If you can't find certain folders just look through the ones you DO HAVE until you find the folder you are looking for. It sounds stupid but it works! If you have any more questions, feel free to let me know and I will do my best to answer. Happy gaming 🙂