RTP describes the share of stakes a game is expected to return over a very...

https://www.active-bookmarks.win/rtp-is-a-game-s-long-run-average-return-house-edge-is-the-casino-s

RTP describes the share of stakes a game is expected to return over a very large number of plays; the house edge is the casino’s corresponding expected share. A 96% RTP means a 4% house edge, not a promise about your session