I launched a few quizzes, and all of them received tens of thousands of spam responses. This is absolutely outrageous. What are the settings to block these spam responses?

Please don’t tell me to set the quiz to not be public. The fun of this component is lost if only registered users can vote. Attracting new users happens when the quiz is public. They answer 1-3 questions, and if they like it, they register on the site for more. Making it available only to registered users is a mistake.

Is there a setting to prevent this spam? Is there an option to enable a Captcha button – reCAPTCHA v3?