What is KuCoin gas fee?

Could you please explain what is meant by "KuCoin gas fee"? As a cryptocurrency enthusiast, I'm familiar with the concept of gas fees in blockchain transactions, but I'm not sure how it specifically applies to KuCoin, a popular cryptocurrency exchange. Is it a fee charged for certain types of transactions on the KuCoin platform? If so, how does it differ from gas fees on other blockchains or exchanges? Additionally, how is the KuCoin gas fee calculated, and are there any ways to minimize or avoid it?