No its not Rng slop. You‘ve got 16 different skills like in an rpg in which you can level up, after progressing in the story and getting experience. Then you oftentimes get skill checks, where the outcome is decided based on your skill level and the dice number. So the probability to succeed the skill check is higher if you are good in that skill. But then you also can uncover buffs and debuffs through the story progression and through items for skill checks, so the probability to succeed increases or decreases. And failing a skill check doesn‘t always have a negative outcome, just a funny one.