Imagine u can "fractionate" a cube

So, let me explain my problems, I like to draw with large shapes, 'cause drawing I have more ideas, and I love to draw littles props like that, 'cause I’ll detailing more and more if I want.
I don’t have a PROBLEM, but I love to draw like that, and… I think is more smooth drawing props like that

I don’t understand what you’re asking for. If you mean you want to draw with other shapes, you can already make custom brushes with any shape you want, and change their size to whatever you want.

Or are you asking for the ability to zoom in and add detail indefinitely, vector-style? A vector-like approach inherently clashes with the (often low-res) raster nature of pixel art.