You can create a hosted feature layer view and use a view definition to hide the editor tracking fields. This will keep the editor tracking fields in tact but prevent that information from being shown in the pop-up.
Create hosted feature layer views:
Create hosted feature layer views—ArcGIS Online Help | ArcGIS
Define fields or features:
Manage hosted feature layers—ArcGIS Online Help | ArcGIS
Hi, this works great for ArcGIS Online, but how does it work for Feature Layer (with password) in Portal For ArcGIS without fedarated ArcGIS Server?
Retrieving data ...