In the current version, when attaching a document, we get an extra step, we have to choose between 'Browse this Mac / Browse Cloud Locations / Insert a Link'.
This is an unnescesary and annoying step - it makes the user experience slow and frustrating.
MacOS can Browse the Mac and Cloud Locations by default, and inserting a link works via the clipboard - not via attachment.
This submenu is just an extra step that slows down the workflow.
Please remove it, or add a preference to turn it off.