How to display breadcrumb on category?

If you’re dealing with the default “Category” taxonomy and the post post type, then you can get the post’s attached category terms with get_the_category(). $categories = has_category( $post ) ? get_the_category( $post ) : array(); The has_category() check is there just to fend off other post type posts. get_the_category() gives you an array of categories … Read more

How to make a secondary Pages Screen

You’ll start with add_menu_page(), to create the actual admin page. From there, it’s really up to you, but I recommend using the WP_Posts_List_Table: nearly everything is built-in and ready to use. There are several comprehensive articles on creating a custom list table; most of them should be sufficient for getting you started.

Best approach to create a customized page

The only reason custom templates would not be searchable is if they stored significant amounts of content in postmeta fields, instead of the main content field. To have customizable layouts whose contents are still fully indexable by default WP search, use the Block Editor. You can create custom blocks if needed, but even the Core … Read more