Remove unused styles from wordpress

Question

I'm trying to dequeue/deregister styles that are unneccesarry(WooCommerce,Contact form 7) from all post/pages of my wordpress website.

Tried offical WooCommerce's way to disable these extra styles and scripts, but it's not dequeue-ing those since styles are still loaded in the source code and Google PageSpeed Insights is still showing them as being rendered; so:

add_filter( 'woocommerce_enqueue_styles', 'jk_dequeue_styles' );
function jk_dequeue_styles( $enqueue_styles ) {
    unset( $enqueue_styles['woocommerce-general'] );    // Remove the gloss
    unset( $enqueue_styles['woocommerce-layout'] );     // Remove the layout
    unset( $enqueue_styles['woocommerce-smallscreen'] );    // Remove the smallscreen optimisation
    return $enqueue_styles;
}

// Or just remove them all in one line
add_filter( 'woocommerce_enqueue_styles', '__return_false' );

in functions.php Isn't working. I also tried to remove them like this:

function remove_assets() {
    wp_dequeue_style('wc-block-vendors-style-css');
    wp_deregister_style('wc-block-vendors-style-css');
}
add_action( 'wp_print_styles', 'remove_assets', PHP_INT_MAX );

Pointing at specific style id wc-block-vendors-style-css and setting PHP_INT_MAX. It's still not removing that specific style.

Notes:

This functions.php belongs to the child theme of a custom, redone twenty-twenty WordPress theme and cache has been cleared. I've tried most of the answers here from the StackOverflow of users' having similar issues, but not a single one worked.

Woocommerce support is enabled in the theme.

How to dequeue/deregister styles and scripts with WordPress 5.6 in 2021?

Answer 1

According to @Aliakseyenka Ihar - I've tested myself, When I added deregister before wp_dequeue_style - it removes the vendor-style

function remove_assets() {
    wp_deregister_style('wc-block-vendors-style');
    wp_dequeue_style('wc-block-vendors-style');
}
add_action( 'wp_enqueue_scripts', 'remove_assets', 11);

Or ninja way

add_filter( 'wp_enqueue_scripts', 'jk_dequeue_styles', 99999 );
function jk_dequeue_styles( $enqueue_styles ) {
    global $wp_styles;
    unset ( $wp_styles->registered['wc-block-vendors-style'] );
}