Have you heard of any flex story?
There are many in my country, I say many because there is more than 1 case and most of them are influencers even though they are not involved in gambling, and they show off luxury goods as if they are theirs even though they are borrowed or rented, so don't trust influencers completely.
I have someone who says from the tune of it, he is selling some kind of roulette system to me. Like teaching me on how to beat the system but when I ask him if he actually win using this strategy, he can't answer straight.
And the best story "turning 500 PHP to 100,000 PHP" in one night of baccarat session, but there are no proof whatsoever.
If that were true and many people were doing it, wouldn't that eventually get the attention of the casinos so the system would be fixed and wouldn't be able to be tricked anymore, so if anyone says they can beat the system and sells a method, it's a lie because they know it's easier to scam to people than to trick the system.