Approving on the User's Timesheet Page
Approval operation can be performed when checking a user’s timesheet without going to the “Approval Page”. Switch to user’s timesheet using the user picker. Timesheet should be a user timesheet and period of the timesheet should match to a timesheet period.
You can approve/reject each project individually or you can approve all of the projects once. You can write a separate approve/reject note for each project. Instead of “Approval Page”, approving timesheets in this way allows you to inspect individual worklog entries.