Library folder randomly appeared in Documents
This morning a folder named "Library" appeared in my Documents list, and whenever I try to open it, there's a message that says I don't have permission to see its contents (there's a red-and-white caution circle over it). I haven't made any changes to my Mac recently, and the only software that I've downloaded in the past couple of days were some Adobe Creative Cloud updates. I didn't see anything weird in EtreCheck or Activity Monitor, so I don't think anything nefarious is going on, but I still would like to get to the bottom of this since I've never seen it happen before.
iMac Line (2012 and Later)