What are the benefits of holding OKB?

Could you elaborate on the advantages of owning OKB? I'm particularly interested in understanding its utility within the crypto ecosystem, as well as any potential returns or discounts it might offer. Additionally, how does OKB contribute to the governance of the OKEx platform? Is there a staking mechanism associated with it? And finally, what are the long-term prospects for OKB holders in terms of growth and adoption?