Like everything in life, writing is defined by habits. Where we write, when we write, and the tools we use are things we can become wedded to over time. Sometimes to the point where we can’t imagine writing any other way.
If the way you write works for you then it doesn’t matter how fixed you are on a certain habit, but when it’s not working it can bind you into an unfortunate lack of productivity.
My own experience of breaking these ‘I can’t do it any other way’ habits has left me a bit of an evangelist for trying new things. So, my challenge to all you writers out there is:
If your current method of writing is frustrating or limiting your productivity, then try a change and do it for long enough that it feels normal.
It may not work of course, but conversely it might just be a surprise success!