How to buy USDB in Binance?

Could you please elaborate on the steps involved in purchasing USDB on the Binance platform? I'm particularly interested in understanding the initial setup process, including account verification and funding the account. Also, I'd like to know the precise navigation through the platform to locate the USDB trading pair. Furthermore, are there any additional considerations I should be aware of, such as trading fees, limits, or market volatility? Lastly, is there a specific time of day that would be optimal for executing the purchase, or does it not matter? Thank you for your assistance in clarifying this process.