^You can simply ask the casino staff about their provably fair system and I think you can verify it publicly.
What that is mostly matters is to choose a reputable casino and verify it publicly. Then if you are good enough to know about how to test and know fair games, you can test it out yourself, not by asking the casino staff because scammers always know the way around to cheat without telling the truth.
So that the casino will not manipulate? If there is manipulation, it would be more complex than that. As for me, I bet anytime and I do win or lose. What you will take is what you will take.
We don't know whether the casino is manipulating or not because we only play by watching the livestreaming of the game and all we have to do is place bets that we are sure will give a win.
What I mean is that irrespective of you staking immediately after the last game, or you wait some seconds after, that because you bet on the same thing, that it would still be the same result.
According to the post I replied to, he thought to avoid manipulation, that the game should be staked when about to start the next game, but I do not think that is necessary than playing on a reputable casino site.