RTP is a long-run average, not a promise for one session. At 96% RTP, the house...

https://www.quantifiedstrategies.com/rtp-variance-and-expected-value-applying-a-quantitative-framework-to-online-casino-gaming/

RTP is a long-run average, not a promise for one session. At 96% RTP, the house edge is 4%. Volatility shapes how uneven results can be; in the short run, you may win or lose far more than the average suggests.