Exporting to .dwg and .dxf. - curves?

There is a difference between 2d and 3d DWG/DXF Exports.
The 3d Export includes Arcs, Circles etc as those equivalent CAD things - i.e. smooth ‘curves’ without segmentation.
But the Export as 2d always makes everything out of Lines - and irrespective of the SKP’s Circle’s segment count in the 2d CAD version it has 24s…