Explanation
Creating a Custom Report type with activities as the primary object is the recommended way to create a report on agents' daily call volume, including related case and contact information. A Custom Report type is a type of report that allows you to select the objects and fields that you want to report on, as well as define the relationships between the objects. By selecting activities as the primary object, you can report on the calls that agents have made or received, as well as filter them by date, duration, or status. By selecting case and contact as related objects, you can report on the details of the cases and contacts that are associated with the calls, such as case number, case owner, contact name, or contact phone number. Verified References: Service Cloud Consultant Certification Guide & Tips, Create Custom Report Types

Explanation
Standard Web-to-Case with assignment rules is a solution that can accomplish the requirement of allowing customers to log cases with structured data and route based on Urgency and Product Line. Web-to-Case enables customers to submit cases from a company's website using a web form that captures case information and creates a case record in Salesforce. Assignment rules can be used to automatically assign cases to queues or users based on criteria such as Urgency and Product Line. Verified References: :
https://help.salesforce.com/s/articleView?id=sf.knowledge_web_to_case_overview.htm&type=5 :
https://help.salesforce.com/s/articleView?id=sf.customize_caseassign.htm&type=5