It's also easy to overwhelm reviewers with far more code than they can possibly review. And it's also the hardest stuff to review where the code at surface level looks totally fine, but takes long hours of actual testing to make sure it works.
It's so weird right? I keep hearing people say it's open source but like... where's the code then? I've tried to find it. I can find stuff for core components, but they lock features behind a delay-wall in the app. If it was open source that stuff would be gone immediately.