ReCaptcha v3 will not present a captcha anymore, but rely on browser fingerprinting and other information google can get about you.
Here is a test: https://recaptcha-demo.appspot.com/recaptcha-v3-request-scores.php
And the API documentation: https://developers.google.com/recaptcha/docs/v3
Now I have the problem that e.g. VPN IPs or static company IPs seem to be blacklisted and only get a score of 0.1 even when the browser profile itself is fresh and has no adblocker and other privacy tools installed. Using a mobile internet connection, I get up to 0.7.
I expect that many sites will adopt v3 when it gets released as stable version, which imposes a problem when using networks which are blacklisted.
Logging into a Google account improves your score quite a lot, but this also means that Google learns what sites the account owner uses, both on the site with captcha and on sites with unrelated Google services, which use the fact that you are logged in. So it would be good to increase the score without logging in.
Is there any way to prove you're human even when Google distrusts your IP?
As of August 2022 it seems to be less of a problem. I get a score of 0.9 without Google cookies.
The recaptcha also now includes a test:
Press the button containing a traffic light to continue. [🚗] [🚦] [🚙]
Not sure why they added the test, it asked me every time for the traffic light and this test is easy to pass for bots. Maybe they measure the time how fast you click the button or track your mouse movements?