I've noticed that configuring your popup in MapViewer Classic controlled what was editable and viewable in Field Maps/Collector. With the new Map Viewer, updates to the popup field visibility are not reflected in the editing pane within Field Maps. For example, if I enable a field to be visible in the popup, that field does not automatically become visible and editable in the editing pane of Field Maps
Are Forms now a requirement to configure what attribution you do and do not want editable in Field Maps?
Theoretically this means you can have different information display in a popup than what you allow your users to edit?