Stablecoins on Ethereum's layer-2 networks have reached a significant milestone of $13.5 billion, driven by their increasing adoption and practical applications. Tether (USDT) leads the market with a capitalization of $140.88 billion, while the Dencun upgrade has enhanced transaction efficiency, resulting in a surge of daily transactions across various layer-2 solutions. Despite some networks experiencing declines, the overall growth of layer-2 ecosystems is reshaping Ethereum's future, highlighting the pivotal role of stablecoins in decentralized finance.