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"96% RTP" sounds like you keep 96% of your money. Over a real session, the spread around that average is far wider than the average itself. Move the sliders and look at the range, not the middle.
Total wagered
$500
Expected end
$180
Unlucky run (10%)
$0.00
Lucky run (10%)
$409
At 4.0% house edge, wagering that much is expected to cost about $20. The RTP applies to total money wagered, not to your deposit, and every round you replay the same money it is charged again.
A statistical model, not a simulation of a specific game. Real slots have jackpots and bonus rounds that skew the distribution further.
RTP describes the average across millions of rounds, not your session. A high-volatility game pays most of its return in rare large wins, so the typical session ends well below average.
No. It applies to total amount wagered. If you cycle a $100 deposit through $2,000 of bets, the edge is charged on the $2,000.
No. The edge is a percentage, so betting more simply increases both the amount you can win and the amount you are expected to lose.