The recipe for getting the Classic Negative look on X-T3, X-PRO2, X-T2, X-T30 or other X-Series where you can save your own profiles and have Classic Chrome simulation. You an apply these settings to emulate the Classic Negative look that is added as new Film Simulation to the X-PRO3.
The recipe is not mine, credit below to original source. But I have found a few extra bits that weren’t mentioned in the original source.