[Resolved] Block/Hook Element Display Rules – Dynamic Child Pages and Page Author Targeting

I want to create visual block that can be hooked into multiple pages using the block element – my current wish is to hook a block on a page and all (future) child pages, without having to manually add hundreds of them each time (think: a block for a “section” of the site with relevant section-wide content).

If I use a hook element, I can include PHP to tailor the display of the element content based on arbitrary criteria, such as post author or parent page (get_post_ancestors), or inject other custom fields into the content.

However, it seems that if I use a block element, my options are more limited: I can get a better display of content and create it more visually with the block editor, but lose some of the selection criteria and dynamic content I can include with the hook element.

How could I achieve displaying a block element either by URL pattern filtering or other criteria such as post ancestors or post author? Are there any plans for custom display rules on all elements based on PHP filtering, or to add author/ancestor based targeting?