How to change "Billing details" title on WooCommerce checkout page with a hook

I am trying to change some titles on the WooCommerce checkout page.

One of the titles is "Billing details"

I've tried:

function wc_billing_field_strings( $translated_text, $text, $domain ) {
    switch ( $translated_text ) {
        case 'Billing details' :
            $translated_text = __( 'Billing Info', 'woocommerce' );
            break;
    }
    return $translated_text;
}
add_filter( 'gettext', 'wc_billing_field_strings', 20, 3 );

I just can't change the text of those, whatever I add to my functions.php or WooCommerce alterations file.

Can you please let me know, how I can change those title?

Note: I would like to make use of action hooks. I don't won't to copy the WooCommerce template file as other options suggests.

source https://stackoverflow.com/questions/67918992/how-to-change-billing-details-title-on-woocommerce-checkout-page-with-a-hook