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

https://www.romeo-bookmarks.win/rtp-is-a-game-s-long-run-average-return-the-house-edge-is-the-share-it-keeps

RTP is a long-run average, not a promise for one session. At 96% RTP, the house edge is 4%. Volatility affects how wins and losses arrive. Short-run results can swing sharply, so you may lose more—or win more—than the average suggests.