No dev anywhere manipulates rng against the player.
I want you to sit quietly and think about why a dev would ever do that? What benefit do they get from doing so? What are the alternatives to doing this? Then I want you to consider the negatives that might occur from doing so. Now, using logic and keeping in mind the goal is to sell games, come to a conclusion.
Usually it's the other way around, so that questions of (un)fairness hurtint reputation and sales don't crop up.
https://www.gamasutra.com/view/news/116071/Analysis_Game_AI__Our_Cheatin_Hearts.phpJust roll this long enough, you are guaranteed to get a couple interesting sequences.
https://rolladie.net/roll-a-d20-die
