RTP is a long-run average, not a session promise: 96% RTP = 4% house edge. The...

https://johnnywrbo401.wpsuo.com/how-do-i-treat-expected-loss-like-the-ticket-price-for-entertainment

RTP is a long-run average, not a session promise: 96% RTP = 4% house edge. The edge reflects expected losses over time; volatility affects how bumpy play feels. In a short session, results can vary sharply—and may be far from the average.