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

https://bravo-wiki.win/index.php/How_Is_Casino_Volatility_Similar_to_Portfolio_Risk%3F

RTP is a long-run average: 96% RTP means a 4% house edge, not a promise for one session. Volatility shapes how often wins land and how large they may be. Short-run results can swing sharply, so you can lose more than expected.