sorry and next step 3 must send some BNB (cca 0.03 BNB) from Binance (use BEP20 for transaction) on you MetaMask ETH address
Because Binance Smart Chain use gas BNB not ETH.
After open your Binance account and copy you ETH or BEP20 address (check they are the same)
Binance Peg Ethereum tokens not send on another exchanger if not supported Binance Chain.
PS: First all test on small amount cca 10 usd when everything is ok SEND all ETH (Binance Peg Ethereum tokens)