When you play online slots, knowing the RTP tells you the average return to...

https://fantasynamezone.com/why-players-are-paying-more-attention-to-how-online-games-actually-work/

When you play online slots, knowing the RTP tells you the average return to players over time, usually around 95% or higher. Volatility shows how often and how big wins can be—high volatility means fewer but bigger payouts