Is there a DWG geometry type that cannot be expressed using WKT?

Question

Is there a geometry type (both 2D and 3D) that is supported by DWG and cannot (lossless-ly) be expressed using Well-Known Text? If there is, please provide an example.

kttii · Answer

It likely depends on the software you intend to use.  If you use AutoCad Map 3D, then:
About New Polygon and MultiPolygon Features explains about Polygons and Multipolygons.  It identifies that you cannot create non-planar polygons.
About LineString and MultiLineString Features explains about Lines and Multilines.  It identifies some concern for arcs.
About Point and MultiPoint Features doesn't list any issues with Points or Multipoints.

Is there a DWG geometry type that cannot be expressed using WKT?

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