That happened because you unlinked OneDrive 6 months ago, or it deauthenticated and was never signed back in. Without being connected, it never got the memo that those files were removed so it never deleted those things from there.
The same thing would happen if you uninstalled any other program and then deleted the now local-only files, or if you restored from a 6 months old backup.
That happened because you unlinked OneDrive 6 months ago, or it deauthenticated and was never signed back in. Without being connected, it never got the memo that those files were removed so it never deleted those things from there.
The same thing would happen if you uninstalled any other program and then deleted the now local-only files, or if you restored from a 6 months old backup.