#GasFeeImpact Gas fees are a crucial factor in blockchain usability, affecting transaction costs and network efficiency. On Ethereum, high gas fees often result from network congestion, impacting DeFi and NFT users. Layer 2 solutions like Arbitrum and Optimism help reduce fees, making transactions more affordable. Networks like Solana and Avalanche offer alternatives with lower costs. Understanding gas fees is essential for optimizing transactions and choosing the right blockchain for different use cases.