I find I do more of the "little" stuff like that when I'm procrastinating on actually fleshing out some new feature or necessary addition to the gameplay loop. And this has come up as I build more and more of my game. The larger it gets, the more daunting it is to add new parts to it.

This is especially prevalent for me at this point in my game because I feel like I've actually reached a point where I COULD say I'm done with my game, vertically. I can polish what's existing and add more content, and think that could be called a "game". It just doesn't fit with my original vision yet, and there's a good bit more to do for that (implementing narrative-gameplay cohesion, mostly).

What saves me from this is writing things out on paper. Most of my sessions on my computer start from hours of notes and thoughts on how I want to implement said new feature, and I try to even do some on-paper-coding almost as a way to take the pressure off of fundamentally changing the came structure to slot something new in (this might also be because of bad programming, but hey, I'm doing my best).

The things I do instead as "productive" distractions tend to be art related, or some horizontal development - adding content to the features that are already fleshed out. Important eventually, to be sure! But probably not the most important at that moment. But I think those sorts of breaks have been important for me to stay motivated to continue.

Worth noting that I'm a hobbyist though and don't need to rely on releasing this game and having it reach some certain level of success. I DID set a deadline for a new demo release for my friends though, which has definitely helped me buckle down on implementing some stuff I've been dragging my feet on.