Pattern categories, and an inserter editors can navigate

Eleven patterns dropped into the default categories are eleven things an editor scrolls past, and the inserter is the only place they exist.

register_block_pattern_category( 'turkerdev', array(
    'label' => __( 'Site layouts', 'turkerdev' ),
) );

// and removing the ones core ships, which are rarely wanted
add_action( 'init', function () {
    remove_theme_support( 'core-block-patterns' );
} );

Removing the core patterns is worth considering on a site with a strict design: they are generic, they use core styles the theme may not support, and an editor cannot tell which patterns are the site’s and which came with WordPress. The category has to be registered before the patterns that reference it or they silently land in uncategorized. Naming the category after the site rather than after the layout type is what makes it findable.