CF7 CSS still loading even when form is not present (filters added)

Hi,

I’m trying to improve my site’s performance and avoid loading unnecessary assets from Contact Form 7 when no forms are present on the page.

I’ve added the following code to disable the default CSS and JS globally:

add_action( 'plugins_loaded', function() {
    add_filter( 'wpcf7_load_js', '__return_false' );
    add_filter( 'wpcf7_load_css', '__return_false' );
}, 1 );

Then I conditionally load them only when a form is detected:

function lz_tiene_cf7_shortcode() {
    global $post;
    if ( ! is_a($post, 'WP_Post') ) return false;
    if ( has_shortcode( $post->post_content, 'contact-form-7' ) ) return true;
    if ( function_exists('has_block') && has_block('contact-form-7/contact-form-selector', $post ) ) return true;
    return false;
}

function lz_cargar_cf7_condicional() {
    if ( lz_tiene_cf7_shortcode() ) {
        if ( function_exists( 'wpcf7_enqueue_scripts' ) ) wpcf7_enqueue_scripts();
        if ( function_exists( 'wpcf7_enqueue_styles' ) ) wpcf7_enqueue_styles();
    }
}
add_action( 'wp_enqueue_scripts', 'lz_cargar_cf7_condicional', 20 );

Even with these filters and checks, I still see the following stylesheet being loaded on pages where no form is present:

/wp-content/plugins/contact-form-7/includes/css/styles.css

I’ve cleared all caches and tested with a default theme and no other plugins active.

Could you please confirm:

1. Is there another mechanism in CF7 that forces this CSS to load?
2. Is there an updated/better way to conditionally load styles and scripts only when needed?

Thanks in advance for any help!