How to use Google recaptcha 3?

Question

reCAPTCHA

Good afternoon!
1. Have you had experience implementing the new Google recaptcha 3?
2. What scenarios did you write for spam bots?
3. What is the best thing to do if the score is below 0.5 during authorization, registration. Would blocking work in this case? Or introduce two-factor?
The site where it is planned to enter this captcha is multi-user.

Answer 1

recaptcha 3 assigns a rating to the user, and that's all this recaptcha does.
I was considering implementation. And I came to the conclusion that for registration and password recovery it is better to use Inivsible Recapcha, which, like recaptcha3, is invisible to the user until he arouses suspicion. And for login and other actions with an already identified user (comments, etc.) it is better to use recaptcha3, and send to 2F