The reality is poker hand dealing will not be able to implement with seeds. In the end there needs to be a deck and there needs to be a shuffle and there needs to be a deal, all of which combined can't be provably fair when it comes to seed and proof which is why poker is not provably fair.

Now, don't get me wrong, dice was not provably fair until it was so there could be some method one day, some developer would find a way to do it and he would implement and they would fix it and make it provably fair but until someone finds that unknown method for now there is no provably fair poker in the whole world.

It is still fine because as long as it is a legit website and the odds are at the relm of reality there is no problem at all, so I can definitely play poker without worrying about it.