What’s happening to Facebook Groups?

As much as I continue working with Facebook groups that much I get disappointed, since October 2017 Facebook changed something with its groups, the reach is not the same, the clicks I used to get were 90% more, there is a huge difference between then and now. If I was taking 100 clicks to my post, now I get 10 this is a dramatic change to all of us working with Facebook as a source for bringing traffic to our websites. Please help, this is an enormous problem I can't solve. Tried to change…

What's happening to Facebook Groups?