At this level, individuals have a basic understanding of what GitHub is and how it functions. They are familiar with the concept of version control systems and repositories. However, they may not yet be comfortable with performing tasks on GitHub without guidance.

Novices can perform basic tasks on GitHub such as creating and cloning repositories, making commits, and pushing or pulling updates. They understand the workflow of using GitHub but may still need assistance when encountering unfamiliar situations.

Intermediate users are comfortable with more complex tasks such as branching and merging, resolving merge conflicts, and using .gitignore files. They can revert commits and understand the use of Git tags. They can handle most common scenarios independently.

Advanced users can work with remote repositories and manage large projects with multiple contributors. They are proficient in using advanced Git commands like rebase, cherry-pick, bisect. They can set up and manage GitHub Actions for CI/CD and secure their repositories.

Experts have a deep understanding of Git internals and can customize Git configuration to suit their needs. They can write custom Git hooks and troubleshoot complex Git issues. They may even contribute to the Git open source project.