GN4 supports optional auto-insertion of default paragraph styles in a new created text or article element.

If auto-insertion is properly configured, each time you create a new article element, one or more related paragraph styles are automatically inserted.

When editing a new text and the system inserts style(s) to match the schema, the style with the name of the corresponding element type is selected. Example: if the element type is 'byline' and there are two possible byline styles called 'byline' and 'byline1' to choose from, the 'byline' style is inserted. If there are no styles available named as the element type, the first available style is inserted.

For further details, see Default styles for type and also Re-apply all styles default for the type.