When I configure the edit widget for experience builder, I make sure I turn off the add feature option on the layers I make editable. However, the widget still allows me to add features, even though I shouldn't be able to.
Hi @buhlerc , I believe this may be the same as: Solved: Removing the deleting capabilities from the Edit W... - Esri Community
You have ownership/admin privileges on the layer so you can still make the edits. Other users will not.