To display blog posts on a website, it's necessary to add a blog section to your preferred website page(s).
Within the editor, click on the Add section button that's between any two sections:
From the menu of sections, select Blog and click on the thumbnail. A blog section will be inserted below:
You can manage blog posts and their categories via the blog management panel on the left:
After making any edits, remember to update your website for the changes to reflect online
Learn more about managing blog settings