Drag and drop *TO* Outlook email message as attachments
There are many posts here about dragging from Outlook to SharePoint. However, if you need to attach multiple files to send via email to external recipients (links are not an option, though dragging and dropping as links would also be useful in other scenarios), this can be really cumbersome with a large doc library, partly because you cannot select and then act on multiple items, except to download them as a .zip file, which are invariably blocked or stripped by AV software. It's a multistep process today at best.
Allowing drag-and-drop straight to an Outlook message would be a huge efficiency gain.
This is a gap in the standard offering from Microsoft. In many cases sharing links is not an option and users need to attach SharePoint documents to a new email. There are 3rd party apps addressing this functionality (e.g. https://www.slimapplications.com/wp-content/uploads/2021/04/EmailManagerMailItemSPFx.png).
Richard McConnell commented
Today an exec cited this to me as a primary reason staff want to go back to using a shared network drive! Please help us move forward (not back!) with simple drag and drop functionality!