At my startup, my team reached a headcount of ~30 and I had to design process to keep things moving. Getting a bunch of disparate parts in even a 100 person company to produce the artifacts needed to create software is a massive undertaking that doesn’t involve people management at all. The two responsibilities can be completely divorced from each other if you want.
I never thought I’d be dusting off those skills again because I do strictly IC work now, but I’m now using them every day. It feels (a subjective term, which the author used as well) like when I was in “leadership”.