Is Poland the hardest language?

I'm curious to know, is Polish really considered the hardest language to learn? I've heard various opinions on this topic, but I'm looking for a more definitive answer. Some people say its grammatical complexities and vast vocabulary make it challenging, while others argue that it's just a matter of dedication and practice. So, what's your take on this? Is Polish truly the toughest language to master, or is it just a stereotype?