I'm very curious to know which Magento version consists default Google ReCaptcha module.
As per the official documentation by Magento:
The Google reCAPTCHA extension is bundled and installed with Magento Open Source and Magento Commerce 2.3.x.
Source link : Google reCAPTCHA || Magento
The Google reCAPTCHA extension is installed with Magento from magento2.3.1