Salesforce already has many out of box UI and Lightning Base components, but there is always scope for something more. We came across a requirement where we had to override a standard button of custom object and that component, we needed a Lookup input with prepopulated values on load.
Service Cloud functionalities are expanded by field service lightning features adding dispatching, monitoring, and reporting field service representative’s activity etc. Field Service Lightning is a powerful set of features which you can customize to meet your own unique field service needs.
Lightning Service Console is the heart of Service Cloud. This provides personalized view of each customer and their cases. The Service Console is a standard Salesforce Lightning console app that meets all your service needs but you can customize it as per your need.