Hi, the date is linked in the event that a post doesn’t have a title so that you can still navigate to the singular version if browsing through a list of posts/search results/etc.
There isn’t an option to disable the date from being linked that you can turn on/off so you’d have to create a child theme ( https://developer.www.ads-software.com/themes/advanced-topics/child-themes/ ) and then copy /inc/template-tags.php over into your child theme.
Look for line 364-380 in that file
// Post date.
if ( in_array( 'post-date', $post_meta, true ) ) {
$has_meta = true;
?>
<li class="post-date meta-wrapper">
<span class="meta-icon">
<span class="screen-reader-text"><?php _e( 'Post date', 'twentytwenty' ); ?></span>
<?php twentytwenty_the_theme_svg( 'calendar' ); ?>
</span>
<span class="meta-text">
<a href="<?php the_permalink(); ?>"><?php the_time( get_option( 'date_format' ) ); ?></a>
</span>
</li>
<?php
}
And remove the tag for the post date there.