i dont think it works that way, if you search the right thing anything is find-able on google if its a certified site(which FA is) but dont worry if someone random searches your name and then click the link they wont be able to see anything but a empty screen with

''System Message
The owner of this page has elected to make it available to registered users only.
To view the contents of this page please log in or create an account.''

Oh thank god haha I don't want random people seeing my work.
Lets hope no one creates an account to see my stuff lol

When I saw that they added this feature I was ecstatic because I hate that my FA and posts made on it are prominently featured in google search results. Unfortunately, however, it seems that enabling the setting hasn't changed anything...

I felt confident for a while that my FA wouldn't be found by some randon person but now I'm worried haha ugh
I wish they had a feature that'd actually hide our pages from google