Hello,
The CAPTCHA you are seeing on the checkout page is not added by the WoodMart theme or WooCommerce itself. It is being injected by a Recapchata plugin.To remove it, you will need to go to your Plugins section and locate the CAPTCHA plugin and disable it specifically for the checkout page or adjust its settings there.
Regarding the newsletter checkbox text (“NIEUWSBRIEF”), this is added by the Mailchimp integration plugin (MC4WP – Mailchimp for WordPress). You can edit this text from MC4WP > Integration > WooCommerce Checkout > Checkbox label text . From there, you can change the label or translation as needed.
Best Regards