Yeah I did not downvote you, feel free to take a dive into the data if you really care about that.
I think your analogy about the cars can be augmented a bit. I would say that individual components like VNC are not really a car to begin with. VNC is an insecure protocol by default. Technically there are VNC security measures to potentially encode the data, but these are often not used*. Furthermore, even if you encrypt the data stream, VNC authentication options are severely limited. So something like VNC needs to run over something like a SSH tunnel to be considered properly secure. And to properly do that, you need an SSH integration as well. That is one example where these synergies happen in XPipe.
Technically there is loads of proprietary stuff that tools like RealVNC do to increase security, but that cannot be considered the open VNC standard.