RTP is the share a game is designed to return over many plays: 96% RTP means a...

https://paxtonscoolchat.readspirex.com/posts/if-i-wager-ps200-on-a-4-house-edge-game-what-s-my-expected-loss

RTP is the share a game is designed to return over many plays: 96% RTP means a 4% house edge. Volatility affects how wins and losses arrive. In a short session, results can differ sharply from the long-run average.