hide_form.php

add_filter('fluentform/shortcode_defaults', function($data, $atts) {
    $formId = \FluentForm\Framework\Helpers\ArrayHelper::get($atts, 'id');
    if ($formId) {
        $form = \FluentForm\App\Models\Form::find($formId);

        // check form and do your work and return null;
        return null;
    }

    return $data;
}, 10, 2);