Fury is such a yaper that few people take his words seriously, especially this trash talk. It seems to me that if their fight was according to the UFC rules, then Ngannou would have a much greater advantage than the bookmakers now give in favor of Fury in a fight according to boxing rules.
Yes, I agree, in this case Fury’s chances would be much lower than they are now in a boxing match. Fury is certainly a yaper, but his punch is very powerful, you can’t take that away from him. It is not clear what he is capable of now, since he had a long break without fights, and it is clear from his form that he did not devote much time to training. But the same can be said about Ngannou, he has also been without practice in the ring for a very long time, it is not clear how this will affect his results.It would be funny if, after so many years of dominance, he was beaten by a fighter from the UFC.
I don't remember the years of his dominance
I remember how he ran away from the rematch with Klitschko, I remember three whole fights with a basketball player (sorry Wilder) where he sometimes ended up on the canvas, I remember how he chickened out from the fight with Usik. A defeat from a UFC fighter would be a fair end to a clown’s career, but it’s too good to be true. 
), he is still one of the most athletic man in boxing. And his fighting skills? His shape and his record indicates that he has the top fighting skills, he is a pure born talent. 
This fight is already interesting enough for the people around the world specially if they know both fighter's features, and even us here in this forum are making some wild speculations about what could happen on the day of their fight knowing that both of them are good enough to withstand each other's punches.