When sharing a map from ArcGIS Desktop (ArcMap or ArcGIS pro), I noticed that the feature symbology is retained, however the label properties are not. When I asked about this I was told the label engine in ArcGIS Online is different from the label engine in ArcGIS Desktop. I realize the label engine in ArcGIS Online is much more simplistic than the Desktop label engines, however should it not be easy to retain the relevant label properties?
Properties that could be retained from ArcMap / ArcPro
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If there are several label classes then perhaps only the default class properties would be retained
The label would need to be based on a single field, and could not contain complex expressions.