WP captcha use in gravity form

It should be under Forms > General Settings and then you need to scroll down to the bottom to R-Captcha Settings. you will need to go to the Google Recaptcha v2 developer console and set up your site key and secret key for that website.

Its R-captcha setting default comes from gravity form, not from your plugin, I need the same image captcha use from your plugin to gravity form same as the contact form and other WordPress forms.

Ref images: https://ps.w.org/wp-captcha/assets/banner-772×250.jpg?rev=2386794