Step 1 Connect reCAPTCHA to Elementor
In the WordPress dashboard go to Elementor > Settings > Integrations
Scroll down until you see reCAPTCHA.
You will see two boxes:
reCAPTCHA Site Key
reCAPTCHA Secret Key
Paste the keys you obtained from: https://www.google.com/recaptcha/admin
Then click Save Changes.
Step 2 Return to your form
Now edit the page again with Elementor.
Click the Form widget.
In the left panel go to Form Fields > Add Item > Type > reCAPTCHA V3
Now you will see a new field type available: Badge > Inline
Click Add Item.