Salesforce Fact #708 | Name compound field in lightning-input-field
For Sobjects where the Name field is a compound field and consists of FirstName, LastName, MiddleName, Suffix and Salutation, we can specify the Name field directly in lightning-input-field. This will show the FirstName, LastName and Salutation fields as input. Reference: https://developer.salesforce.com/docs/component-library/bundle/lightning-input-field/documentation Attached is the screenshot.