If you then launch Visual Studio Code from inside that directory it will open the main C# file for your project, along with the new Solution Explorer view for your code.

While you might have many projects in Solution Explorer, often you're only working on one of them. Here's how to get a view that focuses on the project that matters.

Visual Studio 2022 17.7 contains some productivity features. Among others, there is a convenient file comparison within the Solution Explorer, eliminating the need for external tools.