Linked Ticket tab displays a list of tickets where the User is registered as Requester or Assignee.
In the list you can view details and edit a ticket by click the ticket row. The tickets restricted view will then be opened in a new tab. See Ticket Details, Restricted Mode.
If you select tab Organization in the left part of the page the Linked Tickets tab is filled with the tickets belonging to Organization, all tickets where a member of the Organization is registered as Requester or Assignee.