How to Get Rid of the Owner Field and Rely on Automatic Assignment Exclusively
If you want to rely on sales territories or assignment rules to provide access to accounts, opportunities, and leads, you have to get rid of the owner field using Oracle Visual Builder Studio. That's because you can't automatically assign ownership of accounts, opportunities, and leads.
Whoever creates a record becomes its owner and ownership provides edit access to data, including the ability to assign others to the sales team and reassign ownership.
If you're concerned about unauthorized access by owners, you can create a dummy user and assign ownership of all records to that dummy resource. Whatever solution you explore, you must keep in mind that the owner field assures that the creator of a record retains access to that record.