In the meantime, the focus has shifted away from the Ethereum network itself to layer 2 systems like “rollups,” which scale the Ethereum network off-chain while borrowing its essential security guarantees. An entire layer 2 industry has popped up to scale, or increase capacity on, Ethereum, with leading products such as Arbitrum, Optimism and Loopring allowing users to transact at a fraction of the cost of Ethereum, and attracting billions of dollars in combined total value locked (TVL) as a result.
Source: https://www.coindesk.com/layer2/2022/04/13/reminder-the-merge-wont-solve-ethereums-scaling-woes-by-itself/?utm_medium=referral&utm_source=rss&utm_campaign=headlines