RTP and house edge describe the same long-run maths from different angles: a...

https://www.wall-bookmarkings.win/rtp-is-a-long-run-average-not-a-session-forecast-96-rtp-means-a-4-house

RTP and house edge describe the same long-run maths from different angles: a game with 96% RTP has a 4% house edge, on average, across a very large number of plays. Neither predicts what you’ll get back in one session