Is Dubois the hardest fight of Usyk career?

Sometimes we focus too much on size. Dubois is big and powerful and can definitely destroy big targets that stand in front of him, but he isn't that much of a great boxer. That why small Lerena that certainly isn't an ATG put him on his ass a few times. Usyk is certainly facing a challenge in Dubois, but moreso if it had been Kabayel or Opetaia