Rollups are an exciting innovation that allows transactions to process on a parallel chain, with the results posted back ("rolled up") to mainnet in batches. Rollups
Rollups are still cutting-edge tech and will take time to mature it'll take several months for developers to transition, native wallet support, cross-L2 and L1-L2 bridges etc. -but this is the future of Ethereum scalability and eventually other blockchains. Rollups