>>1676895> I'm somewhat aware about this strokes vs fills thing, but it's kinda too difficult to trace every line twice.Now you sound like the guy from 2 threads back, that is not difficult, that is impatience or laziness, pick one.
Don't use stroke to fill or do it like the image attached for linework.
Strokes serve 3 purposes, logos, mechanical things, and short lines where ends are hidden.