Game design takes concepts from broader design also. One of the most important books, “The Design of Everyday Things” (Don Norman), set the base for UX design today.
One concept is that form follows function. When you, as a designer, must decide which form something in your game should have, it’s better to think about its function first. Many games adopt things like this. You can see that a power-up that makes things explode is a bomb, while a water engine in the last Zelda game looks like a hydrant.
But is it always the case? Every game has aesthetics that combine with the fantasy it offers and the motivations it gives to the Players. It’s clear that the casual Player of Candy Crush Saga is looking for immediacy, but the Player of a From Software game may be looking for something more complicated to use, in the name of the “beauty” of it.
Form follows function but it is always guided by the aesthetics!