The “TCP/IP model” is a common but informal name for what is probably more properly termed the “Internet protocol suite”. UDP is included.
I’m actually not sure where QUIC fits in though. Wikipedia’s pages on both the IP suite and the OSI model say it’s on the transport layer of the IP suite, and layer 4 of OSI, but so is UDP. So I guess it’s another example of how the OSI model is more of a theoretical idea than something that represents reality?
The “TCP/IP model” is a common but informal name for what is probably more properly termed the “Internet protocol suite”. UDP is included.
I’m actually not sure where QUIC fits in though. Wikipedia’s pages on both the IP suite and the OSI model say it’s on the transport layer of the IP suite, and layer 4 of OSI, but so is UDP. So I guess it’s another example of how the OSI model is more of a theoretical idea than something that represents reality?