How I must use social links block in template part?

This variance give me that icons don’t render in frontend part:

1.

<!-- wp:social-links -->
<ul class="wp-block-social-links"><!-- wp:social-link /--></ul>
<!-- /wp:social-links -->

<!-- wp:social-links /-->

I don’t understand, why it don’t working – others blocks like

<!-- wp:site-logo /-->
<!-- wp:site-title /-->
<!-- wp:navigation /-->

works perfectly