I think I get something very subtle out of Rebelle, like little textured paint ridges it adds to my brush strokes, but admittedly it’s probably so subtle you’d never notice in the context of a real animation. The other thing which is less subtle is the ink bleed for the lines though, which gives the outlines a very realistic texture IMHO.
(to be fair, I have a hard time with Procreate as well, for most of my digital art I’m kind of a diehard CSP user)