The QUIC protocol (defined by IETF) has built rules on top of the UDP protocol to govern the transport of content. So it is not the same thing. The QUIC protocol is used primarily for video streaming but may be adopted by IETF as part of the move to HTTPv3. The mix of TCP and QUIC is described in the Enea insight article https://www.enea.com/insights/tcp-vs-udp-the-fight-for-space-on-a-shared-network/ove to HTTPv3.