Attaching relevant articles to the work order or work order line items allows technicians to access them offline using the Field Service Mobile App. Creating a quick action on the work order to search the Knowledge base would not ensure offline access, as it would require an internet connection to perform the search. Updating the Service Appointment page layout to include the Articles related list or adding the Knowledge Lightning component to the Field Service Mobile App would not be effective, as technicians use the Work Order Line Item Card in theField Service Mobile App to view their assigned tasks. References:
https://help.salesforce.com/s/articleView?id=sf.fs_mobile_app_overview.htm&type=5https://help.salesforce.
com/s/articleView?id=sf.fs_work_order_line_item_card.htm&type=5