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

https://www.bookmarkingvictor.win/rtp-is-a-long-run-average-not-a-promise-for-one-session-96-rtp-means-a-4

RTP is a long-run average, not a promise for one session: 96% RTP means a 4% house edge over time. Volatility describes how uneven results can be. Short-run variance can leave you well ahead or down, even when the game’s average is clear.