RTP is a long-run average; the house edge is the casino’s expected share: 96%...

https://rentry.co/r5pruchb

RTP is a long-run average; the house edge is the casino’s expected share: 96% RTP = 4% house edge. Volatility affects how often results swing and by how much. In a short session, luck can overwhelm the averages, so outcomes may differ sharply.