On the main blog page, I can control the content that shows (see first screenshot) including H1 and intro.
On the category page, it just shows the filtered blog items without content and even without a header (see second screenshot). Is there a way to control the layout and content (e.g., H1 and intro) on these category pages? Or does that require custom work and/or child theme override?
It seems that this will require custom work via the child theme to rewrite it.
If you are planing to do so, then most likely you will need to edit the archive.php file.