Not quite sure how you found your way onto a tech forum without any understanding of what software development entails, but unlike carpentry, where every time you want a new wall the carpenter needs to go through the same process to make the wall, or in cooking, where every time I want a roasted turkey the cook needs to cook a turkey, software almost never does the same thing twice. If you find yourself doing the same thing twice, that's a tool problem.
That produces a much fatter tail distribution, because you're doing someone that no one has ever done before, and thus no one knows exactly how long it's going to take.
odd, because my experience is that your CI/CD pipeline does the exact same thing repeatedly.
Perhaps the answer to your confusion about my experience is that I don't suffer tools that hamper my productivity.
Put it another way.
I ran a raiding guild for several years and about halfway through that stint I recruited a player that raised the bar for what I thought was possible. Perhaps you need your bar raised.
That produces a much fatter tail distribution, because you're doing someone that no one has ever done before, and thus no one knows exactly how long it's going to take.