Many channels, but the weekly meetings some teams have are a great way to get started.
It’s a big project, Drupal is. Many different areas that people are working in. The project is it’s own stack of technologies and skills, from low level framework considerations to the last bit of people-facing interface. Composer, Documentation, Accessibility. Each layer in the stack comes with shared considerations about goals, priorities, standards, documentation and getting code written, reviewed, committed.
These links all go to long, dense outlines of plans and issues where current state of things and what to work on next is not super obvious. But there is a predictable and reliable way to see and hear people discuss their projects and initiatives. Outside-In, Admin Information Architecture, Progressive Web Apps. Many of the larger initiatives have weekly meetings to discuss progress, status and next steps. Mentoring, Multilingual, Diversity.
Here’s a calendar with all the core meetings on it.
These meetings are an easy way to start listening in and getting up to speed. The timing is predictable and you can be sure it’s the experts talking about what is happening and important now. Layout, Security, Frontend components. Don’t let that hold you back to ask questions or share your thoughts. They are nice people and always looking for more people to help out. You are welcome.