Just sharing this for educational purposes.
I have seen a lot of promotions advertising the use of Metamask Bridge to Swap tokens Cross Chain.
Bridges are very expensive, primarily due to the gas and fees required to transfer your Token A from Chain A to Token A from Chain B.
This screenshot shows an example of swapping BEP20 ETH (Ethereum) for ERC20 ETH.
Swapping 0.05 BEP20 ETH (approx. $96) to ERC20 ETH, you will receive 0.027 ERC20 ETH (approx. $54).
This DOES NOT include the extra gas you will need to pay to conduct the swap.
While there is a lot of hype around Cross Chain bridging and plenty of projects are out there trying to capitalize on such hype, it's important to Do Your Own Research and understand how Cross Chain bridging works.
It's actually cheaper to just send your tokens to a CEX (Centralized Exchange), for example, send BNB to your CEX Wallet and just trade your BNB to ETH on the CEX Market, then send your ETH from your CEX Wallet back to your Private Wallet. Most CEXs have a trading fee of 0.1% or less. Most withdrawal fees from a CEX Wallet are the same as the gas fee via Private Wallets.
As an example, you could send $96 worth of BNB to a CEX (gas fee on BNBChain would be about 8c), trade that BNB to ETH on the CEX, and then withdraw that ETH back to your wallet (as an ERC20 token) that would cost around $3-$5 in withdrawal fee depending on the gas price on the network at the time.
This process will most likely leave you with $91-$92 in ETH vs. $54 in ETH you would receive from using a Cross Chain Bridge Swap.
It always pays to Do Your Own Research before jumping into the hype that could actually cost you more money.