You can add a Publish post to a page on your website, not just your blog. You do this with your post's embed code.
How do I add my post to a page with embed code?
If you publish with embed code, follow these steps.
In Publish, click Publish, then click Copy Link to copy your post's embed code.
On your website, create or open the page where you want your post.
Add an HTML block (often called Custom HTML or embed code) and paste the code.
Publish the page on your website, then open the live page to check your whole post shows.
How do I add my post to a page if I use the WordPress plugin?
The Narrative WordPress plugin sends your posts to your blog posts. To add a post to a page instead, switch that post to embed code.
In your post, change the category to Publish via Code.
Click Publish. If your post is already published, click Yes, update now. when Publish asks you to update it.
When it's finished uploading, click Copy Link.
In WordPress, create or open the page where you want your post.
Add a Custom HTML block and paste the code.
For the full steps, see Publishing to WordPress with embed code.
Publish remembers the category you chose last. When you're done, change the category back to your usual one before you publish your next post with the plugin.