Copy/paste feature using editor widget — How does ExB determine what fields to match/copy?

[Bud]

AGOL hosted feature layers; Experience Builder; editor widget

When copying/pasting a feature from Layer1 to Layer2, how does ExB determine what fields to match/copy?

1. I assume it's matching fields that have exactly the same name.
2. Where does the list of fields to copy come from?
   1. Does the list of fields come from the AGOL hosted feature layer, the web map, the web map form configuration, the layer in Experience Builder, or the list of fields in the editor widget?
   2. True field names or field aliases? I assume true field names.
   3. If fields are excluded in the editor widget, do they not get copied/pasted?

What are the rules when copying/pasting a feature into a different feature layer?

[andeb31]

My guess is it is like the append tool in Pro. If the field names do not match between each layer, it will ignore the field and set the value to null in the new feature. As for where the fields list is sourced, that I do not know. My gut says the editor widget.