One dev uses an autoformatter (black for Python) for his codebase. When he wants to do side by side diff on a laptop, he reduces line width to 70 characters and

One dev uses an autoformatter (black for Python) for his codebase. When he wants to do side by side diff on a laptop, he reduces line width to 70 characters and formats his entire codebase, works with his diff tool, then reformats back to original width.