Get username from user account vs username from form metadata

@luisrodx, collecting data with either the KoboCollect app or ODK Collect app is the same and does not affect your collected data.

The username is metadata that will update the database in the server when you have configured the username in your Collect app. You should be able to configure the username in your Collect app as outlined in this support article here. At the same time, you should also be able to configure the metadata setting in the server as outlined here. Please note that both options should be set to get the username to work as expected.

submitted_by, on the other hand, is the information/details showing which user account submitted this information. This is more useful if you share your project with other users through manage permissions or row-level permissions.