RTP describes long-run returns: 96% RTP means a 4% house edge, not a promise...

https://fast-wiki.win/index.php/How_Do_I_Avoid_Getting_Tilted_After_a_Long_Losing_Streak%3F

RTP describes long-run returns: 96% RTP means a 4% house edge, not a promise for your session. Volatility affects how wins and losses arrive. Over a short session, results can vary sharply, and your balance may fall quickly.