RTP is a game’s long-run average payout, not a promise for your session: 96%...

https://ericksuniquedigests.trexgame.net/how-do-i-read-a-slot-s-rtp-and-not-overthink-it

RTP is a game’s long-run average payout, not a promise for your session: 96% RTP means a 4% house edge on average over time