Currently, setting up a notification email to your bookkeeper to be aware if there's uploaded receipt is not available in QuickBooks. I'll take note of your suggestions as it helps our engineers determine what features to be added in QBO future enhancements.
While we don't have a timeline for when this will be available, you can check out our blog site. This is the place where we share information if there's a feature update.
Also, check out the topics from these articles to learn more about managing downloaded banking transactions and receipts uploaded: