While similar, I think the culture more involves the attitudes that's been fostered by the company itself (likely decisions made by their board and upper management).

Most of my colleagues are really nice and friendly one-on-one or even in a group. However, the culture problem is across all departments (~500 employees).

There's a poor attitude that's a result of a perverse options and bonus incentive structure. At least for the software teams, it results in shipping a product regardless of the quality. Essentially, as long as your group ships the bare minimum of something that was planned for that quarter, you get your bonuses.

They're a software company and they don't even have a QA/Test team.

It's a toxic culture and they wonder why there's massive turnover.