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

https://www.social-bookmarkings.win/rtp-is-a-long-run-average-not-a-session-promise-96-rtp-means-a-4-house-edge

RTP is a long-run average, not a session promise: 96% RTP means a 4% house edge over time. Volatility shapes how wins and losses arrive—steadily or in bigger swings. In a short session, results can vary sharply either way.