Are hybrid planks waterproof? Well I can say yes with the outermost confidence purely because I have next-generation hybrid installed in my home. They are 100% waterproof. I even have them installed in my bathroom. The beauty is that if the water was to go down on top of the boards, it's a non-porous material that completely locks tight together at the joints.
So you could get a bucket of water and pour it down on top, and it can't go through. By default, it's 100% waterproof, not waterproof enough to go inside of your shower. Cause the system is not compatible with that. But, the boards themselves are waterproof.
There is an astrix next to that. The most modern versions of hybrid flooring are the most waterproof iteration because it takes a luxury vinyl plank and an air aerated PVC board. So that particular combination, the APC, the IPC, or the Karndean Korlok. They are the most waterproof types of hybrid in the market today.
So with confidence, laundry, bathrooms, kitchen, all those areas, you need to have those waterproof capabilities installed with confidence, 100% waterproof.