I think FAB buttons can be a tremendous help in a UX Design. I remember the first time I recognized the FAB button on Facebook messenger, the small circle at the bottom of screen stood out to me in a curious way. I had never seen a button like that and so I didn’t know what to expect! I quickly saw how powerful it could be. It opening into more options could eliminate the need for a large navigation menu. Im glad that I came across this article, I think it will benefit the app that we’re designing since it has a lot of calls to action!