He takes an age to recover. He stood staring at Wlad, gassed with his mouth open, for four or five rounds until he recovered. He never recovered Vs Ruiz or Dubios. Fury doesn't hit the hardest but Wilder would simply not stop in that third fight. He was willing to die in there. Obviously Fury has brilliant recuperative powers whether you rate his chin or not.
TBH he was caught with his hands down flush on the chin from a powerful overhand right by one of the hardest punches in the division, only one that is fully recovering from that is Fury.