How does Binance make money on BNB?

Could you please elaborate on how Binance generates revenue through BNB? I'm curious about the mechanisms behind this, as it seems to be a core aspect of the platform's operations. Is it primarily through transaction fees, staking rewards, or perhaps other innovative methods? I'm interested in understanding how Binance leverages BNB to drive its profitability and how this benefits both the exchange and its users. Thank you for your insights!