Ethereum co-founder Vitalik Buterin expressed his disapproval of Web3 applications that require Google login, criticizing them for pretending to be decentralized. Speaking at the Devconnect 2023 conference in Istanbul, Buterin highlighted that many Web3 projects still depend on centralized services, which contradicts the core principles of cryptocurrency. He emphasized the importance of building truly decentralized applications on robust technical and governance foundations to ensure the co-evolution of infrastructure and application layers.