Read the RTP in the game rules first
4, 5 or 6 BONUS chests anywhere on the 7x7 grid start the Free Spins round, but no one can tell in advance how often that happens. The bonus does not follow a schedule, and a long dry spell does not make it due. The result of one session is random whatever the RTP is, so the 96.50 or 96.53 version promises nothing for a single visit.
96.50 and 96.53 are the two RTP versions of Chicken Drop, and only the game rules show which of them is running. The rules are the place to check before the first spin. Figures from a lobby card or a review do not replace them. Each version describes a long run of bets, not one session.
x5,000 times the bet is the maximum win of Chicken Drop, and it is a ceiling reached very rarely. At A$5 that is A$25,000, and at the top bet of A$240 the same multiplier pays A$1,200,000. Few sessions get near that figure, and no one can say in advance which one will.