Wondering if it is possible to add a web map created in AGOL to AutoCAD as a background layer?
Example: I have created a web map that includes our own aerial photo with our own street centerlines. Is it possible to add this web map to AutoCAD?
No, you need to add the layers individually.
https://doc.arcgis.com/en/arcgis-for-autocad/latest/manage/supported-web-layer-sources.htm
Web map | Not supported | Not supported | N/A | A web map is a collection of ArcGIS layers, and it is supported to add the individual layers to a CAD drawing. |