Windows – Files saving to OneDrive instead of PC

Right-click "My Videos". Choose Properties --> Location. If the location is inside OneDrive, click "Restore Default." Click "Okay" several times. (This appears to have fixed the problem for me, although there were several tedious steps before things stabilized, e.g. quit onedrive, restart, set up the syncing again from scratch, go to Files on the web, clarify which folders to sync.)

The OneDrive that appears under the Desktop is a namespace junction, similar to the user folders that appear under This PC, that 'points' to an actual file system location. The registry entry that places it on the Desktop is:

HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace\{018D5C66-4533-4307-9B53-224DE2ED1FE6}

and, if the location of the OneDrive folder was changed from its default, you should see your D:\OneDrive path as the data for the value named {A52BBA46-E9E1-435f-B3D9-28DAA648C0F6} under:

HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders

OneDrive does some unique things with attributes, one of which is setting the L (link) attribute on its actual file system folders, and that is probably confusing Total Commander.

The best way to determine a folder's or file's location in the file system is to view its Properties dialog or add the Folder Path column to a Details view in File Explorer.

EDIT: The dir /ad command distinguishes between directories & reparse points:

C:\Users\keith>dir /ad
 Volume in drive C is Windows
 Volume Serial Number is F057-590D

 Directory of C:\Users\keith

08/19/2019  04:12 PM    <DIR>          .
08/19/2019  04:12 PM    <DIR>          ..
10/26/2018  01:42 PM    <DIR>          .cache
07/21/2018  06:37 AM    <DIR>          .gimp-2.8
07/21/2018  06:37 AM    <DIR>          .thumbnails
07/19/2019  08:49 PM    <DIR>          AppData
07/19/2019  07:51 PM    <JUNCTION>     Application Data [C:\Users\keith\AppData\Roaming]
07/19/2019  09:31 PM    <DIR>          Contacts
07/19/2019  07:51 PM    <JUNCTION>     Cookies [C:\Users\keith\AppData\Local\Microsoft\Windows\INetCookies]
08/16/2019  05:38 PM    <DIR>          Desktop
08/09/2019  04:12 PM    <DIR>          Documents
08/12/2019  05:59 PM    <DIR>          Downloads
08/14/2019  09:18 PM    <DIR>          Favorites
05/15/2019  11:20 AM    <DIR>          Google_files
08/17/2019  10:59 AM    <DIR>          IntelGraphicsProfiles
08/14/2019  09:18 PM    <DIR>          Links
07/19/2019  07:51 PM    <JUNCTION>     Local Settings [C:\Users\keith\AppData\Local]
07/21/2018  02:22 AM    <DIR>          MicrosoftEdgeBackups
08/14/2019  09:18 PM    <DIR>          Music
07/19/2019  07:51 PM    <JUNCTION>     My Documents [C:\Users\keith\Documents]
08/14/2019  09:18 PM    <DIR>          mycontacts
07/19/2019  07:51 PM    <JUNCTION>     NetHood [C:\Users\keith\AppData\Roaming\Microsoft\Windows\Network Shortcuts]
08/17/2019  11:01 AM    <DIR>          OneDrive
08/21/2019  04:39 PM    <DIR>          Pictures
07/19/2019  07:51 PM    <JUNCTION>     PrintHood [C:\Users\keith\AppData\Roaming\Microsoft\Windows\Printer Shortcuts]
07/19/2019  07:51 PM    <JUNCTION>     Recent [C:\Users\keith\AppData\Roaming\Microsoft\Windows\Recent]
08/22/2019  01:33 PM    <DIR>          Sandbox
08/14/2019  09:18 PM    <DIR>          Saved Games
08/21/2019  06:18 PM    <DIR>          Screenshots
08/14/2019  09:18 PM    <DIR>          Searches
07/19/2019  07:51 PM    <JUNCTION>     SendTo [C:\Users\keith\AppData\Roaming\Microsoft\Windows\SendTo]
07/20/2019  10:52 AM    <DIR>          Standalone Programs
07/19/2019  07:51 PM    <JUNCTION>     Start Menu [C:\Users\keith\AppData\Roaming\Microsoft\Windows\Start Menu]
07/19/2019  07:51 PM    <JUNCTION>     Templates [C:\Users\keith\AppData\Roaming\Microsoft\Windows\Templates]
04/30/2019  11:48 AM    <JUNCTION>     TESTJUN [\??\C:\users\keith\documents\recipes]
08/14/2019  09:18 PM    <DIR>          Videos
12/23/2018  09:18 PM    <DIR>          Work
               0 File(s)              0 bytes
              37 Dir(s)  692,424,450,048 bytes free