Do timesheets need to be submitted separately even after submitting time off bookings for the entire timesheet period?

Timesheets need to be submitted even though the time off bookings were submitted for the entire timesheet period since,

• Timesheet and Time Off are separate functions in Web TimeSheet.
• Time and Time Offs are tracked separately.
• Timesheet and Time Off have distinct approval paths.

Note:
The time off bookings are populated on a user's timesheet representing that the user haven't recorded time against any tasks/activities but was on off during that period.