The part I find challenging in the senior-staff twilight is that having deep technical knowledge means I can solve short term problems, just as requests, fast and effectively. The author mentions that you should spend time understanding the frustrations from other teams, but that takes up loads of time and I don’t like being the person who talks and talks but doesn’t push code and ship features. I’d love to hear how others have experienced that

I’ve experienced this. The critical realization for me was that most of those problems which I know I can solve quickly, without even having to write a Jira ticket or groom them into a sprint or whatever, are problems I should let someone else solve.

Sure, I can do them faster than others and pretty well. But if they’re truly things I can knock out in a day or two, they’re things that other staff can knock out in a week or two, and learn from the experience, and at that size they likely don’t require the standard of quality that I delude myself that I hold myself to.

At the lead/staff level, it’s far better to look for the kind of problems described in TFA: problems that are complex to identify, and for which the appropriate solutions aren’t always the obvious ones. My time is spent much better looking for those than being a 10x-speed senior engineer or whatever. There are actual senior engineers for that; I’m paid for the kind of work that they don’t or can’t do (yet, and to help model and mentor and train them to be able to do it), not to do the kind of work they already can do—whether I would do it faster/better doesn’t matter.

It’s case-by-case of course; sometimes a simple issue is critical or obscure enough (or tempting enough to override my iffy-at-best self-discipline) that I’ll jump on it. But I generally try to remember that a lot of the stuff I could look heroic for fixing in a jiffy is probably both not worth my salary allocation in the eyes of my grandboss, not critical time-wise, and a potential learning/accomplishment opportunity for others.

I think that's a completely natural source of frustration for someone who is used to being able to put hands to keyboard and solve problems quickly, but IMO the higher you climb the ladder, the more you have the opportunity and responsibility to take a longer view and to delegate - which often means that other people are pushing the code.