Organization is really flat, which can be good, but also means there aren't lots of middle-management opportunities...at least the areas I was familiar with.
No onboarding plan for my role. My boss frequently missed or moved our 1-on-1 meetings and never bothered to teach me anything, despite me being new to the MedMal industry and new to the company. I asked questions when I had them, but you don't know what you don't know. Most of our monthly 1-on-1 meetings were 15 minutes or less, when they happened.
Manager was, in general, distant and cold. I mentioned that they missed my birthday and they said "I don't even know when your birthday is...HR doesn't tell me that. I'd have to look that up." Never seemed to try to understand my ideas when I explained them. Maybe it's a Midwest thing.
My manager fired me without any warning/write-up/performance plan. Manager told HR that I had been warned about poor performance, coached on it, and hadn't improved. None of that was true and no documentation was presented (because it didn't exist). HR played along. They like to use Buffett's quotes about integrity, but I can't really say that they walk the talk.