Post navigation links -next and previous post

The post navigation links for single posts is one block but has two variations:
Next post, and the previous post.

Block category: Theme.
Added in: WordPress 5.9

Sidebar settings

Transform to variation (next or previous), display the title as a link.

Toolbar settings

Left, right, and center align. Bold, italic.

HTML Markup

<!-- wp:post-navigation-link /-->
<!-- wp:post-navigation-link {"type":"previous"} /-->

Output

<div class="post-navigation-link-next wp-block-post-navigation-link"></div><a href="..." rel="next">Next</a>
<div class="post-navigation-link-previous wp-block-post-navigation-link"><a href="..." rel="prev">Previous</a></div>