You can discuss ideas, enhancements, tasks, or bugs for your projects in issues and pull requests.
About discussions in issues and pull requests
You can use features like templates and reactions to focus discussions with your project's users and collaborators.
Subscribing to conversations
Even if you're not watching a specific repository, you can subscribe to individual conversations that interest you.
Unsubscribing from conversations
If you're no longer interested in a specific conversation, you can choose to unsubscribe from any future notifications.