It's all about feelings; if you feel cheated, then in your perception, it's cheating, and if you feel uncheated, it implies that the RNG (Random Number Generator) is fair.
If the @OP win, he will not open this thread and think RNGs is rigged

It's not surprising to see a loser will complain and blame the casino because he's not making money. A mad gambler will blame everything when the fault was himself, such person need to get rehabilitation in order to make his brain think wisely.