Everything can be done badly; a digital design can be just as cluttered as a physical one. And conversely, a physical design with few, well-chosen functions doesn't need to be cluttered.

I also didn't say I wanted a button for every function. But this is getting off into the weeds.

My aim was to say that "minimalism" can be applied in different ways. For example, minimalism in the number of features, or in the complexity of the overall system, or in the ease of operating it.