Prop Bets - Is there a fee taken by WSOP @ GGPoker from Prop Bets?

No, Prop Bets are private transactions between players. WSOP @ GGPoker provides the platform on which this can happen and ensures that monies are held securely and paid to the correct players once the Prop Bet has concluded. 100% of the entry fees will be paid out as prizes with no rake or commission taken.