I'm experiencing two different drag & drop experiences when using the Document Library vs. Document Library Web Part in SharePoint Online when dragging an email from Outlook (Version 1902 Build 11328.20368 Click-to-Run).
Document Library - When dragging the email, the email is copied to the document library.
Web Part - When dragging the email, the email is moved from the Outlook inbox to the document library.
The preferred function is the first, where the email is copied. Is this expected behavior? Is this something I'm able to change?