QUIC is often described as a replacement for TCP or UDP. For embedded products, the useful question is narrower: when does it improve the system? This is an English DEV.to draft based on a Silicon LogiX technical article. The canonical source is linked at the end. Why it matters QUIC runs over UDP but provides secure, reliable streams with faster connection setup and better multiplexing behavior. It can be valuable for devices that interact with modern HTTP/3 services, cloud APIs...