The top prize stays a ceiling, not a target
Symbols land on the 6x4 grid after each spin, and bonus symbols on reels 2 to 5 decide whether the bonus round starts. How often that happens is not known in advance. The result of one session is random, whatever the RTP version. A long quiet stretch can sit at the same RTP as a sudden run of wins, because RTP is an average over many spins.
The grid pays left to right on the Zeus side and right to left on the Typhon side, so one spin can pay on both sides at once. Which RTP version is running here is shown only in the game rules, and the version sets the long-run return rather than anything you see on a single spin.
When the GOD MULTIPLIER activates on one side, it applies to that side's win, and in some bonus modes its values build up over the feature. The top prize is a ceiling reached very rarely, so read it as a limit, not as an expected result.