No, Floyd could not take multiple clean punches from Triple Hype but it's a moot point because if they fought GGG wouldn't land anything significant, he couldn't pin down or land any clean punches on Canelo who is as slow and one paced as GGG. Triple Hype would be punching air and grazing Floyd's shoulder all night.
I reckon GGG could probably knock me down if he caught me right with a flush shot and I'm packing grade A Britanium in my mandible section. Floyd has a Brit Level chin but Sugar Shane sent his mind into another dimension with a right hand and there's a world of difference between a full-blooded Sugar Shane right hand and a GGG one. It's like the difference between a nuclear bomb and a cannon.