I do my updates as a batch every week or so and Facebook seems to be always present. I notice it because of its unusually large update size. Maybe it’s still following the 14 days cycle but that omnipresence makes it feel like it’s a lot more frequent. What’s particularly galling is doing the update, and finding it the next day with another 200+MB update.
Reminds me of my dog who used to greet me every morning by dropping a ball at my feet. Except that this dog isn’t mine, and what it’s dropping at my feet is a big pile of poop!