I have both autism and ADHD, and whilst it’s difficult to draw the line between the two, I do have some instances of inertia that feel more ADHD flavour than autism. I’ve also seen many of my ADHD friends struggling with something like this too, but it seems like it works differently than autistic inertia.

I think that there’s a decent chance that understanding autistic inertia will help us to understand ADHD inertia, even if they’re distinct modes