In blog / archive spacing, you get options to set spacing for blog / archive layout. You can find the setting under Appearance Customize Spacing Blog / Archive
Below are the options available in blog / archive spacing.
Title Top & Bottom Padding
It will add margin to the post title from top and bottom.
Meta Top & Bottom Padding
It will add margin to the post meta from top and bottom.
Content Top & Bottom Padding
It will add margin to the post content from top and bottom.
Post Container Padding
It will add padding to the post container from all sides.
Post Container Margin
It will add outer margin to the post container from all sides.
Article Text Area Padding
It will add padding to the post text area from left and right.
Single After Post Sections Padding
It will add padding from top and bottom to the sections after post content in post single page.