Link:
Delete OneDrive for Business Accounts Can be Tricky (office365itpros.com)
The OneDrive for Business Problem Created When Deleting User Accounts – blog by Tony Redmond
You may also like
OneDrive
SharePoint
How shareable links work in OneDrive and SharePoint in Microsoft 365
Link:https://learn.microsoft.com/en-gb/sharepoint/shareable-links-anyone-specific-people-organization