The Ethereum Economic Zone coordinates operations around Ethereum's block production under Layer 1 builder sequencing, ensuring that Layer 1 and Layer 2 transaction pieces land in the same block.

From the articleEthereum Economic Zone executes first atomic L1-to-L2 transaction on mainnetAlso in Will ETH Reach $3,000? Ethereum Price Holds $2,700 After First Atomic L1-to-L2 Mainnet Test, Ethereum could make moving between L1 and L2 much easier