Layer 2 solutions generally offer lower transaction fees compared to Layer 1 blockchains. Layer 1, like Ethereum, processes transactions directly on the main chain, often leading to high gas fees during network congestion. Layer 2 solutions, such as rollups or sidechains, handle transactions off-chain or in bundled batches, significantly reducing costs while leveraging Layer 1's security. For example, Optimistic Rollups and ZK-Rollups on Ethereum can lower fees by orders of magnitude, making transactions more affordable for users. However, fees on Layer 2 can vary depending on the specific solution, network activity, and data availability costs. While Layer 2 typically provides cost advantages, users should consider factors like latency and withdrawal fees to Layer 1. Overall, Layer 2 solutions are designed to enhance scalability and affordability, making them a cost-effective alternative for most use cases.