Duplicated "Documents" under "iCloud Drive" and "Users" folder.

Hi guys!

When checking the storage of my MacBook today, I found the size of "iCloud Drive" and "Documents" are similar (as you could see in fig. 1). I wondered why and looked into it. After searching online, I found there were actually duplicated "Documents" folders under two locations on my hard drive (as shown in fig. 2).

fig. 1 Storage information of my MacBook

fig. 2 Duplicated "Documents" folders

The location of the "iCloud Drive" folder on the left side of figure 2 is located under "/Library/Mobile Documents". It has both a "Documents" folder with 88.06 GB and a "Documents" link.

The "Documents" link goes to the folder on the right side of figure 2, which is under "/Users/MY_USER_NAME", with the same 88.06 GB.

So it seems the "Documents" folders are using duplicated disk spaces on my hard drive. I checked my MacBook Pro, Mac Pro and Mac Mini and found all the iCloud drives on all of my Macs behaved so. I was wondering if it was designed to be functional as this or I am experiencing some issues. Is there any method to reduce the duplicated disk usage and save some space on my hard drive? Figure 3 is the setup of my iCloud Drive.

Fig. 3 Setup of my iCloud Drive

Thank you for reading this. Your replies are very important for me! Any suggestions would be appreciated.