In 2026, which public chain will become the absolute dominant force in DeFi and on-chain activities? This is a question worth deep consideration. Ethereum's ecosystem accumulation and security remain strong, but L2 solutions like Solana, Arbitrum, and Polygon are continuously eroding market share with their low costs and high speeds. Based on on-chain transaction volume, DEX activity, and lending protocol TVL, the multi-chain coexistence pattern will continue to unfold. The true winners may not be single-chain dominance, but those ecosystems that excel in cross-chain interoperability and user experience. In the DeFi battlefield of 2026, liquidity will be dispersed but opportunities will be greater.