I appreciate your feedback and suggestions, @3axis.

I know there are some differences between QuickBooks Online (QBO) and QuickBooks Desktop (QBDT) reporting. Just like displaying the progress billing on the invoice, showing line item detail of an estimate, and percentage billed on a report.

But I want to let you know that your voice matters and I'm submitting your suggestion directly to our product engineers for consideration. For now, you can visit our blog site so you'll be able to get the latest news about QuickBooks and what our Product Care Team is working on. 

You might want to check out this article to learn more about progress invoicing: Set up and send progress invoices in QuickBooks Online.

Keep in touch if you need any more assistance with this, or there's something else I can do for you. I've got your back. Have a good day and take care always.