RTP is a game’s long-run average return; house edge is the casino’s...
https://www.bookmark-belt.win/rtp-estimates-the-share-of-stakes-a-game-returns-over-a-very-large-number-of
RTP is a game’s long-run average return; house edge is the casino’s mathematical share. At 96% RTP, the house edge is 4%. Volatility affects how wins and losses arrive