This whole conversation reminds me of the Career Cold Start discussion [1]. I remember looking it up at some point when I started a new job. It was somewhat useful, but a lot of this is also hard won knowledge once you understand what actual "working at a company" entails. I'm only beginning to get that sense after 7 years work experience at different companies (small startups, scaleups and now F500).

[1] https://news.ycombinator.com/item?id=16550270