Not sure this is the right site to ask this, but here it goes.
I've never created a Facebook account, because I don't want people to know about me more than I know about them. But I do have an WhatsApp account (since before it was bought), it's practically a requirement where I live (not EU, unfortunately). I've taken every chance I have to opt out of data sharing, but now they've changed the EULA so you have to agree to share your data to continue using the app.
I've researched the privacy settings on Facebook and it seems that if I go to the trouble I can make an account that shares no data with anyone ("friends", advertisers, etc). So I'm considering creating an account just so I can reach the privacy settings and tell them not to use my data. I suppose they wouldn't know more about me than now; after all, they do have my shadow profile already.
The question is: Would that make me more private than just continue using WhatsApp without a Facebook account?