A:
Every chains have their own blockchain explorer:
Ethereum: Etherscan
Fantom: Ftmscan
Binance Smart Chain: BSCscan
--- and so on !
Please go to the corresponding network explorer that you’re bridging FROM to find Bridge transaction:
e.g: If I am bridging 5478 USDT from ethereum to bsc. I will check etherscan.com and search my wallet address.
Then locate your tx. If it’s not the most recent transaction, go to the tab erc20 token txs and find the tx with values matching your bridge tx. (5478 USDT in my case)