I guarantee you will be more productive at writing using the method of a single pen and a legal-sized yellowpad than you will at basically any other tool on the computer, even though that seems counterintuitive. Very few people have the discipline to not flip tabs.

Try it as an experiment.

Attempt to write one document on your computer and one document in another room without any electronics in that room. I guarantee that the latter will go faster. If you need a computer to look things up, maybe use a specific Chrome book or something that bans social media sites. Or, alternatively, use a text-based browser like Lynx.

Happy writing, and I hope some people try this experiment out.