This advice could be translated 1:1 to ADHD (at least in my experience). You have to be very mindful with your attention and energy levels.
I'm wondering if some underlying mechanism in the brain is similar between having ADHD and having suffered a stroke. Or maybe it's just the conscious effort how to handle the symptoms that's similar.
My father recently had a stroke, we both have ADHD, his is untreated. Since the stroke, most of his impacts have been cognitive, not muscular and most of his cognitive issues relate to worsening executive functioning across all executive functions, but particularly exacerbating the worst issues attributed to ADHD.
As you would know ADHD is a problem with regulation, not capacity however with this stroke it appears that his capacity has fundamentally changed and is further impacted by the dysregulation.
It's still early, and we haven't seen the specialist yet but I'm taking this hypothesis to them and (if I remember to) will update/edit here with their response.
In my experience it feels more like the latter - a similar way to manage symptoms rather than a similar root cause. From the article it sounds like OP knows exactly where to spend attention and focus, but needs to guard it carefully (and manage expectations) or else risk falling from their island of stability.