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

https://www.mapleprimes.com/users/kayla-long03

RTP is a long-run average, not a session promise: 96% RTP means a 4% house edge over time. Volatility affects how uneven results can be. In a short session, swings can leave you well ahead of or behind that average.