At my first real software job one of the engineer always used very rough outlines that are obviously unfinished. He always said that having pixel-perfect mockup

At my first real software job one of the engineer always used very rough outlines that are obviously unfinished. He always said that having pixel-perfect mockups is a sure way to have your meeting sidetracked by someone asking if "the button should be bigger" or "the orange should be more red-ish" and then not understand why it would take 5 engineers 6 weeks to "just make the button bigger". I work as a backend engineer now because I just couldn't take those meetings anymore.