Yeah, someone who draws without using construction lines is someone who's drawn That Exact Thing So Many Times that they've memorised the lines of That Specific Thing, like if a famous cartoonist has been asked to draw the character they're known for 50 billion times? They probably don't use construction lines anymore.
Or something like a caricature artist, where they're only drawing one specific thing (a face) and they've learned to gauge proportions of That Specific Thing so that they can go straight to inks.
Or sometimes artists will forego construction lines when doodling, and their doodles are just really good because they're drawing something they're extremely comfortable with.
But most pros use construction lines for actual finished work, and I don't consider it a goal to use them less. I'd rather focus on making my art better and better. You can maybe get a lighter touch with your construction lines, so that they're easier to erase on sketches, (a lot of people see my sketches and think that I don't use construction but actually, I just erase a lot), if having clean sketches is a goal. I don't really think there's much value in getting rid of them, though.
If you get to the point of the folks who don't use them, it's probably going to come naturally. It won't be that you've carefully weaned yourself off of using construction lines -- it'll be that you've used construction lines so much and so consistently that you know them by heart.