Confuse about GB WhatsApp new security update.

As we all know cybersecurity is really necessary these days, we all have seen cybercrime and it is very common just because we allow all updates to access your personal devices. I have also written predictions on cybersecurity trends for 2021 in which I discuss the top 10 cybersecurity trends for 2021 I will give the link below.
People are taking WhatsApp's new update as a threat. Is it's a threat or not? As per new updates, WhatsApp is taking all the private data and deliver it to Facebook to improve Facebook advertisement.
I am a bit confused about the new privacy update of WhatsApp which is GBWhatsapp.