According to @jih2nn, one of the key synergies between FOCIL and ePBS lies in the separation of the beacon block from the execution payload. With ePBS, if the execution payload fails to meet IL compliance, only the execution payload undergoes reorganization (reorg), leaving the beacon chain's stability intact. This architectural improvement reduces risks of chain instability during execution layer events, offering greater predictability for Ethereum (ETH) traders and enhancing confidence in network security and transaction finality. Source: @jih2nn