In ArcGIS Pro, you can configure a layer's display field and enable "Map Tips" which essentially works as a tooltip to display some concise information about a layer when you hover over it, different from a pop-up.
I am wondering if there is a way to enable this feature in a web map in MapViewer on ArcGIS Enterprise for a web layer. Essentially we have our municipality's assessment parcels configured with pop-ups to display a lot of information, but we'd like to allow staff to hover over a parcel and see some immediate information such as address, roll number, owner etc. I haven't been able to find a way to enable a tooltip for web layers however and when I configure and enable the "Show Map Tips" in Pro and then share the layer to our Enterprise Portal it does not have that feature enabled in the web map.