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

https://sofiascoolcolumn.rivetgarden.com/posts/variance-vs-volatility-in-slots-are-they-the-same-thing

RTP is a long-run average, not a session forecast: 96% RTP means a 4% house edge. Volatility describes how wins are spaced and sized. In a short session, results can swing sharply, so you may lose far more—or win more—than the average suggests.