What new info is learned about district 4 through Octavia's complaints?

Through Octavia's complaints, we learn that District 4, which is primarily known for its fishing industry, faces issues such as exploitation and oppressive working conditions. Octavia expresses frustration over the lack of autonomy and the dangers associated with their labor, highlighting the struggles of the district’s citizens. Her grievances also reveal a sense of discontent and a desire for change, indicating underlying tensions within the district that go beyond just economic hardship.