Lean, fast, agile (not in that way, in the real definition of the word) start ups hiring people who are fleeing a FAANG, only to have those FAANGers implement exactly what they left will always seem strange to me

Saw it happen at a company I worked at. Company had flat org structure that took it very far, and worked well. Leadership rolled over, bunch of new manager blood came in, from FAANG, talked about how nice our systems were, and then proceeded to upset the applecart by implementing all the level systems and such, in such a way that the engineers who had been at the company before were never above an L4, and all the "staff" and "platform" were new blood. They then did one or two token promotions, and were astonished when half the legacy seniors quit within the year