themes-wordpress/blockbase/parts/post-meta.html

<!-- wp:group {"className":"post-meta","layout":{"type":"flex"}} -->
<div class="wp-block-group post-meta">
    <!-- wp:post-author {"showAvatar":false,"showBio":false,"style":{"typography":{"fontSize":"var(--wp--custom--font-sizes--x-small)"}}} /-->
    <!-- wp:post-date {"isLink":true,"style":{"typography":{"fontSize":"var(--wp--custom--font-sizes--x-small)"}}} /-->
    <!-- wp:post-terms {"term":"category","style":{"typography":{"fontSize":"var(--wp--custom--font-sizes--x-small)"}}} /-->
    <!-- wp:post-terms {"term": "post_tag","style":{"typography":{"fontSize":"var(--wp--custom--font-sizes--x-small)"}}} /-->
</div>
<!-- /wp:group -->