RTP is a long-run average, not a session promise: at 96% RTP, the house edge is...

https://wiki-cable.win/index.php/Can_Bankroll_Management_Make_a_Negative_EV_Game_Profitable%3F

RTP is a long-run average, not a session promise: at 96% RTP, the house edge is 4%. Volatility describes how uneven results can be. Short sessions can swing sharply, and past outcomes don’t predict the next spin.