Do you believe that we as technical writers and researchers may have the transferrable skills it takes to make a career/hobby with novels? Please encourage one another.
I would agree to this, Duran M. Hetchel. I have just published a monograph in which I place fiction (and particularly SF) as a necessary part of applying a negative dialectic perspective on social science. But as you say, Laurence Wright, necessary but by no means sufficient. The fiction is, I believe, necessary to access the imagination (individual and collective) which we can then bring into proximity with the materially real, to reconcile future paths.
You are asking the wrong question. What you are asking is if being a technical writer wil exclude you from having such skills? Which, of course, it won't. Beyond that we can say nothing.
Consider submitting some STEM-based fiction to the writing contests that the U.S. Army Mad Scientist Laboratory puts out - e.g. https://community.apan.org/wg/tradoc-g2/mad-scientist/b/weblog/posts/army-mad-scientist-back-to-the-future-writing-contest----entries-due-nlt-13-january-2023