That said, this person graduated a coding bootcamp + joined their first team less than 3 years ago. I'm not sold that they have much to teach about managing an engineering team (not that I do either).
When I was lacking experience, I actually really just wanted negative feedback. The absence of feedback, to me, was synonymous with "your work is correct." But no one would ever tell me what I was doing wrong. Even now, half a decade later, I have yet to get that negative feedback. I hope that means I'm just a good coder, but I always have this nagging feeling that it's because no one has actually reviewed my code before.
That said, imposter syndrome is a very real thing, and it’s felt disproportionately by women and minorities in tech — I think we should be cognizant that a lot of our colleagues have been told throughout their lives, implicitly or explicitly, that their work isn’t good enough, and so that positive affirmation can do a huge amount of good.