which is the actual blog page?

Hi!
Im first trying to figure out which php page is the actual blog page built from?

Im using a child theme, so is it the ‘index.php’ from the parent or child theme, or the ‘page.php’, or something else?

then, in the ‘read’ settings, when you can set which is the landing page and which is the ‘post’ page, to me that means you can change which page loads the posts, correct? When I chose a page, its like it still defaults to a particular page and doesnt respond when choosing another.

In my theme I have built a handful of custom page templates, all of which have a few simple modifications.

When trying to apply a custom page to the actual blog page, its not responding to some of the custom changes, which simply includes two div tags, each which style an additional content box above the blog posts:

<div id=”header_img_container”><?php the_block(‘header_img_container’); ?></div>

<div class=”slidersidebar” id=”blog_slider”><?php the_block(‘slidersidebar’); ?></div>

the blog page simply won’t load anything into either of these boxes.. it works fine on all other pages?? I’ve tried modifying the index.php, page.php, and it seems to be responding , but its not acknowledging two additional content boxes remain empty.

ugh!

https://100eight.com/projects/wp/

(the vslider in the first content box should not show up here. it should be a static image, like the other pages)

THANKS!!