How to display all posts from standard posts to custom post types in a loop with pagination?

You don’t need a custom query to include CPTs in homepage posts in normal cases. Just use pre_get_posts.

function wpse215208_include_all_cpt( $query ) {
    if ( is_home() && $query->is_main_query() ) {
        $query->set('post_type', array( 'post', 'photo', 'video', 'web' ) );
    }
}
add_action('pre_get_posts', 'wpse215208_include_all_cpt');