I don’t think there’s a correct answer here. Whatever floats your boat. Do you want to scribble things by hand into a physical notebook? Great! Want to use Notepad on Windows for .txt? Or create a .docx using Word?

Don’t follow trends and seek the “next best way to hack your productivity”. Most of those things are snake oil and a waste of time. Just use whatever you have available and build a process yourself. That’s what most people have done that are successful in applying this. They just use the tool they are comfortable with, and don’t over engineer for the sake of it