Best way to insert post attributes into array?

I’m trying to loop through all the posts but I’m only getting 12 posts.

    $args = array('post_type' => 'post');  
    $loop = new WP_Query($args);

if($loop->have_posts() ) :
    while ( $loop->have_posts() ) : $loop->the_post();  
    $title = get_the_title();
    $post_category=get_the_category();
    $post_category_name=$post_category[0]->cat_name;
    $permalink=get_the_permalink();

    $lng=get_post_meta( get_the_ID(), 'lng', TRUE ); 
    $lat=get_post_meta( get_the_ID(), 'lat', TRUE ); 

    $beer = get_post_meta( get_the_ID(), 'price_beer', TRUE );
    $wine = get_post_meta( get_the_ID(), 'price_wine', TRUE );
    $lnglat=$lng.", ".$lat; 

    
    $arrlatlng[]=array(
        "lnglat"=>$lnglat,
        "beer"  =>$beer,
        "wine"  =>$wine,
        "post_title"=>$title,
        'post_category'=>$post_category_name,
        'post_url'=>$permalink);
    $longitude[]=array('lng'=>$lng);
    $latitude[]=array('lat'=>$lat); 
    endwhile; 
    
      endif;