you ned to disable list view for this to work, use adminimize!

limit wordpress media library to current user.php

  add_filter( 'ajax_query_attachments_args', 'wpb_show_current_user_attachments' );
 
function wpb_show_current_user_attachments( $query ) {
    $user_id = get_current_user_id();
    //has the capability to activate plugins or edit other user’s posts? if not limit files to users id
    if ( $user_id && !current_user_can('activate_plugins') && !current_user_can('edit_others_posts
') ) {
        $query['author'] = $user_id;
    }
    return $query;
}