wp_should_load_separate_core_block_assets()

Source

File: wp-includes/script-loader.php

function wp_should_load_separate_core_block_assets() {
	if ( is_admin() || is_feed() || ( defined( 'REST_REQUEST' ) && REST_REQUEST ) ) {
		return false;
	}

	/**
	 * Filters whether block styles should be loaded separately.
	 *
	 * Returning false loads all core block assets, regardless of whether they are rendered
	 * in a page or not. Returning true loads core block assets only when they are rendered.
	 *
	 * @since 5.8.0
	 *
	 * @param bool $load_separate_assets Whether separate assets will be loaded.
	 *                                   Default false (all block assets are loaded, even when not used).
	 */
	return apply_filters( 'should_load_separate_core_block_assets', false );
}