Yes, I quite agree that each individual player has his own casino, which he considers lucky one way or another, and it can be a choice between several casinos with the same RTP, but having a different ratio of wins and losses.
Everybody has there best and most rewarding casinos they will love to play on and we should not think that one particular casino can be the best anfd the most rewarding which should be a personal thing within us so that we should be create much contention about what we don't really know. There are different casinos and we should go for what we want and where we do get better experience.
Same gambling strategy can work in one gambling platform but this may not be true for other casinos. Regarding Rtp, there are some methods to check real RTP of slot provider per game and gamblers choose which platform they prefer.