LiveShare allows developers collaborate, with cloning a repository. Live Share allows you to share the context of the code, so you get instant, bidirectional collaboration. Debugging is cool as Microsoft puts it – Collaborative debugging goes further, allowing you and your teammate to independently inspect objects using debugging features like hovers, locals and watches, the stack trace or the debug console. You are both able to set breakpoints and advance the debug cursor to step through the session. Check it out.
https://code.visualstudio.com/blogs/2017/11/15/live-share