I worked at Amazon as an intern for 3 months. Super intense work environment that seriously skewed my view of the normal workplace, as it was my first time work

I worked at Amazon as an intern for 3 months. Super intense work environment that seriously skewed my view of the normal workplace, as it was my first time working at a large company. Heard shouting during meetings behind closed doors. F-Bombs used regularly. Saw lots of 50+ year old engineers with kids working there until 3 am for a week at a time. Even as an intern I was working nights and weekends. A lot of the middle managers went home early at 4pm though. Lots of Indian contractors working their ass of so they don't lose their visas and get kicked out of the US. My mentor was getting so many text messages (thousands) being sent to his phone in the middle of the night while he was on call that he was fighting with Amazon to get them reimbursed.