Has there been any update on this topic? I'm having a similar issue with the zoning map I maintain for a municipal government. The duplicate labels I want to remove are those for the streets layer. I don't want to merge the segments together because each segment has its own address range. I want to keep each individual segment but only have one label like I do in my ArcGIS Pro document.
We're encountering this too. We have an app/experience for our DPW that we've created and our streets layer has multiple segments with address ranges for each segment. I'd love to be able to remove duplicates like you can in Pro so that each segment isn't labeled on the web map.
