Hello, Alan. We can change the Invoice to the old style by clicking the Old layout option when editing or creating one.
Open any invoice (new or old) and click Old layout in the top right corner. Hit Switch to old layout, let us know why you’re headed back in the feedback box, and tap Share feedback. Check the screenshot below for a quick guide:

By the way, if you need a hand reviewing unpaid invoices with the old look, check out this guide: Create and send an invoice in QuickBooks.
Feel free to reach back out if anything else comes up.