On-chain, Blockchair shows about 613,500 BTC transactions in the past 24 hours, about 485 in the mempool, with an average fee of about $0.32—so the network is not congested. The largest single transaction in 24H is about $3.925 billion. For ETH, there are about 1.766 million transactions in the past 24 hours, with the largest single transaction about $317 million. Large transfers are worth tracking, but you can’t determine direction based on just one transaction.