Create featured post in elementor builder using ACF

Create acf field first for handle which post make to featured, you can follow this screenshot below

After acf field has been created, insert this code on snippet or functions.php

add_action( 'elementor/query/featured_query', function( $query ) {
	$query->set( 'post_type', 'post' );
	$query->set( 'order', 'ASC' );
	$meta_query[] = [
		'key' => 'post_featured',
		'value' => '1',
		'compare' => '=',
	];
	$query->set( 'meta_query', $meta_query );
} );

Open elementor builder and add post widget follow this screenshot

Download Here