Weird folder behavior after switching to a new user account

Hi there.

I use OneDrive (blue cloud symbol) to synchronize Files in a SharePoint Site (Microsoft 365) between my devices.
OneDrive is easy to set up, but I had to switch to a new user account and probably did something wrong.
I was skeptical about what happens to my data when I switch the user account so I thought it would be a good idea to rename the old OneDrive folders to let OneDrive create new folders and move my data back when the new account works.

There were 3 OneDrive folders in my user folder...
OneDrive
Company Name (containing the Files from the SharePoint Site)
OneDrive - Company Name

First I unlinked my computer in OneDrive settings. After that I renamed the 3 folders to something like...
OLD OneDrive
OLD Company Name
OLD OneDrive - Company Name

I logged on with my new OneDrive user account, disabled Files On-Demand and moved all data from Documents in "OLD Company Name" to Documents in the new created folder "Company Name".
After OneDrive finished synchronizing all Files I decided to move the 3 old folders out of my user folder to prevent saving in wrong locations.
At this point something weird happened: 2 of 3 Folders were moved but the "OLD OneDrive" folder remained in my user folder while also appearing at the new location.

The behavior in windows explorer for the remaining folder "OLD Onedrive" in my user folder is even more weird:
Displayed location: C:\Users\Username\OLD OneDrive
Displayed Path: C:\MovedFolders\OLD OneDrive (the location were I wanted to store the renamed folders)
But when I click the "OLD OneDrive" folder in my user folder the following folder is opened:
C:\Users\Username\OneDrive - Company Name

I'm totally baffled what has happened and I hope that my amateurish description makes sense to someone.
I would like to get rid of the old folders but I'm afraid that deleting them could cause malfunctions. So hopefully someone enlightens me.

Windows Version: Windows 10 Home 20H2

Cheers
HouseMouse22