It's baffling why there hasn't been a significant effort to integrate Maplex label engine or another advanced labeling system into ArcGIS Online (AGOL). Setting up a project exactly as desired can be incredibly frustrating when dealing with the current labeling limitations on AGOL. The struggle between vector and basic polygons, coupled with labeling issues, has rendered the new MapViewer a source of frustration. In stark contrast, the classic viewer effortlessly handles labeling, showcasing the stark difference in user experience. ESRI should prioritize strengthening its foundation, as its efforts in Experience Builder and Dashboard become somewhat moot when the map itself doesn't display as desired.