I assure you you’ll be more productive. I did something similar a couple months back. I have a long running project which is very complex, and I would repeatedly catch myself wasting time on irrelevant design decisions whenever I was introducing new functionality. So my strategy now is to design with a limited and fixed palette (4 colors), 1 font (same size everywhere), and everything is rectangles with borders plus the same spacing/padding. Best decision I’ve ever made in regards to productivity! It’s not exactly unstyled because I still need to assess usability and accessibility. Turns out everything in an interface can be synthesized with bordered rectangles.