The employee hours report is meant for companies already recording their time in bexio who need a clean working-time analysis per person – typically SMEs, agencies and service providers with several employees. If you keep a spreadsheet template per employee today, this replaces exactly that file.
It earns its place wherever employee hours have to be reviewed regularly: before an annual review, for payroll, in a discussion about overtime and remaining vacation, or when management wants to know how the team stands against its expected hours. If what you mainly need is billing towards clients, the work report is the better place to start.