Note: If you use trust wallet, then the above two addresses will be👆 the same.
It doesn't mean only on trust wallet both of ETH and BSC will be same, it depends on the private key. A same private key will generate same address for ETH and BSC on any wallet support that chain.
This is why I like metamask wallet, it supports all available chains in crypto space either ETH BSC Matic RSK and others, just drop your same ETH address and you are set, to see your tokens you only need to change the chain networks, easy as ABC.
You need to add those chains to Metamask first, otherwise you can't use it and prevent from lose (sending to wrong address). Configure the wallet, click add network and fill the information about specific chain you want to add, you can googled it.