Can a session reach the maximum win?
96.50 is the long-run RTP of Gates of Olympus, and it describes the average return over a very large number of spins. It does not say when the free spins will start. How often the bonus round comes is not known in advance, and the result of one session is random whatever the RTP. A session can end far above or far below the return on paper.
97.05 is the highest RTP among the five versions of the series, and 96.50 is the figure for the original. Which RTP version runs on this site is shown only in the game rules, so the rules are the place to check before the first spin.
5,000 times the bet is the ceiling of Gates of Olympus, and it is reached very rarely, so it marks a limit rather than an expectation. Whether a session comes near it depends on chance in every round, and no one can plan a session around that ceiling.