It is possible to cancel processes at libraries that you do not have any role at using the Monitor Requests & Item Processes screen. A cancel button appears next to every request.

Patron physical item requests are correctly only visible based on your role but other processes such as work orders are visible and cancellable by all staff with access to the Monitor Requests & Item Processes page.

Visibility is not a problem as the data isn't private, but the ability to cancel a process should be limited by the scope of the role.