I am trying to make withdrawal using Smart Chain to my Trust wallet Smart Chain address that supports Ether since the address are both the same (BSC and ERC-20 have the same address).
Then make transfer of the Eth back to my normal erc-20 which will be cheaper instead of paying 0.05 eth to exchange directly.
Is this possible and has anyone try it before?
Nope, both chains are non-compatible. It's no different than saying, 'can we transfer BTC to ETH address?'.
If you withdraw your coins to BSC chain, you can only send it to other address on BSC chain or back to Binance.