No. All trading on the Breakout Terminal happens on a demo account funded with simulated capital.
Order execution isn't simplified, though: prices, spreads, order book depth, and fills mirror live-market conditions using real liquidity data from Breakout's providers. Your order fills against the same book depth you'd face on a live venue.
If there isn't enough liquidity at the displayed price, your order fills at the next available price levels, just like it would live. There's no guaranteed fill at the last traded price, regardless of order size.