Query filter by value in meta_value array

I found the answer here. The query is simply :

        $meta_query[] = [
            'key' => 'adresse',
            'value' => $_GET['field'],
            'compare' => 'LIKE'
            ];

As it will search into the serialized (2D) array of the key adress in the table post_meta from the DB any occurence of my $_GET['field'] value. That means it will also search into every key name and its value, but that’s enough for me.

tech