For me, whether I use a Drafts action or a Shortcut kind of depends on the context. For example, I’ve got an evening review Shortcut that does a bunch of things with Drafts, and in that one zI’m trying to use all Shortcuts actions since I hate flipping between Drafts and Shortcuts.
In the case where I almost always run the action from Drafts, well obviously I try not to use Shortcuts since again, I hate flipping between apps. My real problem tends to come from situations where I use the action a lot in both situations. For example, writing to my journal. Unfortunately then the only choices are to duplicate the functionality or just make a decision and be slightly annoyed some of the time, . For me at least that decision often turns out to be shortcuts since it’s faster to write in unless I already have a Drafts action that does almost everything I need that I can modify or whatever I’m trying to do is a pain in Shortcuts.
That really doesn’t answer anything, does it?