A question identical or similar to this was raised in 2021 on this forum but I don't quite understand the advice that was given then.
I have this annoying setup on my system, which I seem to have had ever since Windows 7 came along:

In the right pane of File Explorer the contents of each of the top two things called Documents (I won't call them folders as the icon isn't the standard folder icon) are almost identical, with the upper one showing two additional elements (an Adobe folder and what appears to be a OneDrive link of some kind). The folder called Public Documents contains that Adobe folder (and nothing else), and the folder called Documents contains that OneDrive link (and nothing else).
The annoying part of this setup is that I have to expand the upper thing called Documents before I can expand the lower one in order to display my subfolders in the left pane, plus the anomalous aspect of seeing something inside itself (more or less).
I notice that this problem doesn't exist on the Windows system I use at work so evidently it's possible to remove the superfluous Documents things (x 2). I would very much appreciate advice on how to do that so that I can be rid of this annoyance once and for all, to which I would add that I can't imagine why such a visually confusing setup is there in the first place.
Thank you.