I can share some information about attaching documents and scanners tested for compatibility in QuickBooks Desktop, @swfldog. 

For QuickBooks Desktop 2022, you can use the QuickBooks Desktop mobile app to upload your documents. After uploading the document, you’ll find them in the Doc Center. From here, you can attach it to your transactions. Refer to this article for more information: Attach documents to transactions in QuickBooks Desktop. 

You can still use Scan Manager in previous versions of QuickBooks. To check the list of supported scanners, check out this TWAIN-compliant scanners post. The option to include Brothers TWAIN Scanner will surely make your work faster and more efficient.

I invite you to provide input to our developers so that this feature can be added to future releases. Rest assured, I'll do the same on my end.

Here's how:

1. Select Send Feedback Online from the Help menu.
2. Click the Product Suggestion from the dropdown menu.
3. Fill out the on-screen instructions in the QuickBooks Feedback window.
4. After that, click Send Feedback.

In case you're unable to scan and encountering an error, check out this article on how to resolve them: QuickBooks Scan Manager: Scan and attach documents to transactions. 

Let me know if you need further information about scanners tested for compatibility with QuickBooks Desktop. I'm here to help. Have a wonderful day!