RTP is a game’s long-run payback rate: 96% RTP means a 4% house edge on...
https://varimail.com/articles/does-session-timing-matter-in-online-casinos/
RTP is a game’s long-run payback rate: 96% RTP means a 4% house edge on average. Volatility describes how often and how much wins vary. In a short session, results can swing sharply either way; the long-run average won’t predict your outcome.