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

https://www.logo-bookmarks.win/rtp-is-a-long-run-average-the-house-edge-is-the-casino-s-expected-share-96-97

RTP describes the share of stakes a game is designed to return over a very large number of plays; the house edge is the remainder. A 96% RTP means a 4% house edge on average—not a promise about one session