I agree there are certainly differences across companies with career growth, but there are also best practices that are generally applicable. As a concrete example, as a manager at Meta, I had a report who did a poor job of talking about his work in self-review. Giving him some structure made his impact much more obvious, and it was easier to get him the rating he deserved. The ability to explain your work is critical regardless of company.
I also think that having multiple companies in the community makes it more valuable -- Taro can give you a valuable perspective from people at your company, along with a smart external perspective.
Curious what kind of advice would you be looking for from trusted people within your company?