Sch346 With layer height you don't want to go over 0.2 regardless of nozzle size. You can go higher from a strength perspective, but the part will not have the required detail.
Line width is similar in that wider will be stronger, but with a 0.6 nozzle you have to compromise to maintain detail. I printed several lowers in Bambu PET-CF with a 0.6 nozzle and the following settings: 0.2 height, 0.6 outer and top layer line width, and 0.7 for all other line widths.
