gobjc++-multilib-x86-64-linux-gnu - 4:8.3.0-1 main

This is the GNU Objective-C++ compiler, which compiles
Objective-C++ on platforms supported by the gcc compiler. It uses the
gcc backend to generate optimized code.
.
This is a dependency package providing the default GNU Objective-C++
cross-compiler for the amd64 architecture.