How often does HOLD & WIN come up?
Symbols land on the 5x4 grid at random, and six or more Bonus symbols anywhere on it start a HOLD & WIN round. How often that happens cannot be known before you play. A single session is unpredictable at any RTP, because the RTP is an average over a very large number of rounds, not a promise for one visit.
Every spin on the reels runs under one RTP version, and the game rules are the only place that shows which one runs in the lobby. Check that section before you compare this slot with another title. The name alone does not tell you the RTP.
Lines of matching symbols pay on the reels, but the maximum win is a ceiling that very few rounds reach. Treat the top figure as a limit, not an expected result. The figures table shows its multiple and its money value at the top bet.