I'm not confident that is true in any meaningful sense as it seems to align too nicely with what Facebook would like people to think.
It may sound like a dumb reason, but I have seen the pattern of some eponymous innocent suffering because lazy HR didn't verify waaaaaaay too many times to not take the threat seriously.
That's right - in 2021, Facebook doesn't make you immediately verify your email when you sign up! They eventually close the account if you don't verify but by that point whoever signed up with your name and email already has access to parts of your shadow profile Facebook leaks (ex through 'suggested friends').
To the point of I have folders, digital and physical full of sworn statements I've had to make, and official court documents from six different states attesting "no the John Doe before you applying for this job is not the one who came up in your background check database for grand larceny, no he's not the one who came up for involuntary manslaughter either." and I'm always ready for that conversation later in the interview when I get an email from the recruiter/HR "hey, we have a question about something that came up in your background check"
Even at a small town library there was another patron with my name.
People will only invite you to events on Facebook. Restaurants will only post updates to Facebook. Businesses have support forums in Facebook groups. Etc.
You do miss out on a portion of the internet by not being on Facebook. But I think that's because people rely too much on it.