disable recaptcha icon from all pages (or maybe except on contactpage)

Hi, I would love to delete the Recaptcha item from every page on my website. If at all possible, I want it just on my Contact page. I have tried putting in this code in to my custom CSS to do the latter:

body:not(.page-contact) .grecaptcha-badge {
opacity: 0;
visibility: hidden;
}

But it didnt do the trick, on mobile it is still visible, painfully big.
I do however have a code to delete it from all pages, but I understand from a post I just read now that I would have to include the following:

If you want to hide the badge on all pages, you will need to comply with the terms of use, by including the following text on each of your contact forms (I typically add this just before the submit button)

This site is protected by reCAPTCHA and the Google
Privacy Policy and
Terms of Service apply.

However, I do not know where to put this text. Do I go into my Contact form 7 settings through Plugins? Or do I go into a php-file in my editor somewhere? Can someone help me, I would love to try this if this makes my form and therefore website GDPR-approved. Thank you.

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