Discussions are useful for open-ended brainstorming or feedback, outside the codebase and across repositories. For more information, see "Communicating on GitHub."

You can create labels for a repository to categorize issues, pull requests, and discussions. GitHub also provides default labels for every new repository that you can edit or delete. Labels are useful for keeping track of project goals, bugs, types of work, and the status of an issue.

For more information, see "Managing labels."

Release tracking: You can use an issue to track the progress for a release or the steps to complete the day of a launch.
Large initiatives: You can use an issue to track progress on a large initiative or project, which is then linked to the smaller issues.
Feature requests: Your team or users can create issues to request an improvement to your product or project.
Bugs: Your team or users can create issues to report a bug.

https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/configuring-issue-templates-for-your-repository

https://docs.github.com/en/issues/tracking-your-work-with-issues/creating-an-issue

https://docs.github.com/en/get-started/writing-on-github/working-with-advanced-formatting/about-task-lists

https://docs.github.com/en/issues/tracking-your-work-with-issues