What is the "content" folder in my Sims 4 directory

I have 12 folders in my sims 4 folder (documents - Electronic Arts - Sims 4) and I've been able to find online what each of them do except one - The "content" folder.  I tried google and it gave me results on custom content, which isn't what I'm asking for.  What does the Content folder do?  There are subfolders with titles like 1.content.beta.pc.3.0.1 and 1.content.beta.pc.3.0.2 which each have even more subfolders.  I'm just curious as to what this is, and this thread seemed a better place to post than in bug reports or technical issues.  I appreciate any comments.  Thanks