I GET MORE WRITTEN IN AN HOUR’S TIME. Meaning, I don’t stop to edit or to overthink things as I write because having a page–a physical page–in front of me makes me much more conscious of how much I have written than a scrolling computer screen does. That may not be the case for everyone, of course. But it’s true for me, so writing on paper physically has that advantage for me individually.
When I write fiction, I hand write my first drafts. I have no idea why, since I would never hand write non fiction.
Do what works for you. You may find that your writing flows more smoothly on paper, and that you procrastinate less.