This is a prebuilt version v27.2 of protobuf using c++ standard 20.
ThirdParty
contains libs and headers
bin
contains binary like protoc
config your Build.cs
// 1. Add include
// 2. Add lib
// 3. Add extra definitions
PublicDefinitions.Add("PROTOBUF_ENABLE_DEBUG_LOGGING_MAY_LEAK_PII=0");
PublicDefinitions.Add("PROTOBUF_BUILTIN_ATOMIC=0");
if you have security concerns and want to build from source,the following gist might help
https://gist.github.com/ibreathebsb/73ddba5e359b761d43bb9f15667c173f