I imagine Westrum would describe it as a bureaucratic organizational culture: low cooperation, novelty is not appreciated, and teams build walls to shield themselves from others. Many people have stuck around for decades and seem cynical, including leadership.
Diversity on the engineering team is not a priority. I did not work with a single woman. Teams are not cross-functional and there are bureaucratic walls in the way of productivity. Much of the team is quiet and passive, but then there's the one overly assertive person who steamrolls everyone with their preferred ideas. Tasks are poorly defined, resulting in clumsy and frustrating re-work. PRs are often giant multi-day code dumps, review latency is high, and some just seem to drag on forever. Some PRs sit open and rot indefinitely. Slack is a ghost town. Engineering management is MIA. Standup meetings feel weirdly infantilizing because the scrum master reads everyone's updates for them.
PTO is stingy. Some Office Space-style rage-inducing annoyances like corporate spyware, having to use MS Outlook, and constantly being tested with phishing test emails.