Hi team,
I'd like to suggest an improvement to how ArcGIS Pro configurations carry through to ArcGIS Online—specifically regarding related records and pop-up behaviour.
Related Records and Pop-ups
Currently, related record configurations set in ArcGIS Pro don't pass through to ArcGIS Online. While it's possible to manually configure pop-ups in AGOL for each web map, it becomes repetitive and time-consuming—especially for organizations like ours that use templates to publish field-editable layers.

It would be helpful if:
Pop-up configurations from ArcGIS Pro were automatically retained when layers are added to a web map.
At the very least, there should be an option to "use ArcGIS Pro configuration" as a default.
Templates and Related Record Editing
Another area for improvement is template behaviour. At the moment, related record editing templates must be configured in each individual web map. However, Field Maps does a better job here—it respects the template configuration from ArcGIS Pro even if the web map hasn’t been explicitly configured.
It would be a big time-saver (and improve consistency) if AGOL web maps could behave the same way as Field Maps in this regard.
Thanks for considering this!