100% this. I used to work at a company that sold software that mechanical engineers used all day, every day in a certain field. Our app looked like the last pic but with better alignment.
People who are competent want all the things on their screen all at once all the time. They also want keyboard shortcuts.
I think there’s a balance and I would say it looks like autocad. It can be annoying to use but holy hell when you know what you’re doing. Low floor, high ceiling, and rarely gets in your way