There is some serious work done on C++ starter algo,
check the open pull request:
And the forum post and people involved here:
But as C1Rayn sad, this is not officially supported yet, and people using C++ are usually Terminal Veterans, with perfect understanding of the game. So starting with C++ might not be a great experience.
Even if you are not familiar with Python, Terminal is a great opportunity to learn it
I use JS daily and created a bot in javascript for another large competition, so was resistant to a using hyped up language with a silly name and weird indenting, but I do find using Python my code is smaller and easier to refactor and lists are easier to manipulate. This sounds like a paid promotion for microsoft but I found editting and debugging python v frustrating until I found VS Code.