Hi Dybo, you can assign exp. compensation to the rear command dial. Please find the online owner manual here: FUJIFILM X-T4 Owner’s Manual (fujifilm-dsc.com) and look in the SETUP/Button-dial setting menu.
As for the color science of Fujifilm, that is mostly linked to their excellent jpeg engine and film simulations for jpegs. When shooting raw the 'color science' is less obvious and for skin tones in fact a bit problematic. I'm a fashion/make-up portrait shooter and getting rid of the magenta/green color cast in skin tones (depending color temp) is actually a bit more work with Fuji raw files (my reference is Leica, Nikon and Hasselblad).
