The latest version of recaptcha doesn't even prompt users. It loads on the front-end and uses a scoring system. It's likely you've used it but didn't even know because it's invisible.
It's the older implementations that have the slow loading images.
As far as I can tell, it just checks to see if your browser is Google Chrome to give you your score.
Recatpcha v3 by itself NEVER shows anything to the user and its entirely up the application itself on how to deal with users who are likely to be bots (which also includes users with anti-fingerprinting measures)
This is just splitting recaptcha into two pieces and giving you the first half. Okay, fine, but it's the second half that was causing all the problems!