Literally if I use PayPal to avoid giving places my info already... Facebook would be one of the places I'd avoid giving info to. So no, I would never give them access to my PayPal.Facebook Pay will be available in the settings section of the Facebook or Messenger apps, and it will support most debit and credit cards and PayPal. Facebook is using Stripe, PayPal, and others to process these payments.
Facebook isn't revealing exactly when this payment system will be available across all of its apps, nor when it will launch internationally. Facebook Pay comes just weeks after a large number of payment companies dropped out of Facebook's Libra project. PayPal, which is supporting Facebook Pay, was one of the first companies to distance itself from the Libra Association, the nonprofit organization that oversees the creation of the cryptocurrency and its rollout.
Honestly, I have to laugh at one of the least trustworthy bloated tech companies asking for more info.