Please see the below information on the status bar changes:
https://www.refundschedule.com/irs-wheres-refund-status-bars-disappeared/
The below information explains the process of what happens after you send your tax return to the IRS for approval:
https://turbotax.intuit.com/tax-tips/tax-refund/wheres-my-tax-refund-the-irs-refund-timetable-explained/L9ZoW82cT