I also don't really understand how to see the maximum win in the slot game
It's available on the official site, for example, pragmaticplay.com, or 3rd party sites such as slotcatalog.comSo far or my strategy pattern in playing slots has never bought FS, I prefer to look for FS manually or with manual spins. Maybe that's what makes me never get a big win. What do you think, should I change my strategy to buy FS.
There's no strategy to win, but there are many to make your playing session more exciting:For example, you can do xx normal spins, and then buy a bonus if no bonus feature was triggered after xx normal spins. That way you won't feel bored.
If you aren't in the mood for a slow-paced session (doing normal spins), you can do a bonus buy fiesta / always do bonus buys to your heart's content, etc.
I also agree with you, games with not too big wins are my choice to increase my capital before I switch to other games like Zeus vs Hades. I'm still curious about the Zeus vs Hades game because I'm curious to get X500 on FS. what I often get is only a multiplication of 20x or less. It's a very difficult game to conquer, isn't it.
This one? https://slotcatalog.com/en/slots/Zeus-vs-Hades-Gods-of-WarIt has 15,000x max-win so it's a tough game to beat, but not as "impossible" as Sweet Bonanza et al that has 25,000x++ max-win.
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otherwise would ended for 750,000-800,000 IDR for the new years ~LOL. 
