RTP is a game’s long-run average return: 96% RTP means a 4% house edge, not a...

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

RTP is a game’s long-run average return: 96% RTP means a 4% house edge, not a promise for your session. Volatility shapes how uneven wins and losses feel. Short-run results can vary widely, so a brief session may land far from the average.