I'm a non-JW, though I have some in the family. So, I'm on the outside looking in. I do consider myself a believer in JC's sacrifice, but I don't judge. I don't shun. And some of my best buds are what you'd consider agnostic/atheist. One of them is a dog lover, and raises service dogs. Anyway, here's a link to that article:
http://thewatchtowerfiles.com/ex-jws-atheists/
Whilst acknowledging the limits of such surveys, the polls of ex-jws online I've seen mirror within a few percentage points polls of wider society in my country. ie around a 50/50 split. (https://humanism.org.uk/campaigns/religion-and-belief-some-surveys-and-statistics/).
The article is correct in one sense for my journey. The logical end point of reading the bible critically was a lack of belief in an Abrahamic god or any variation based upon it. A god who decided to ban shellfish over slavery? Really?
edit: I agree very much with several other points the author of that article makes, especially his conclusion on encouraging people to live their lives without damning them for having a belief or not, just not every point he makes in there.