I think the issue of over complicated styles honestly has little to do with platform, simply marketing…

But if you are interested in getting more ‘simple’ styles in your collection, you could perhaps start with looking at legacy collections of styles from say 15-20 years ago, the dawn of arrangers, when virtually ALL styles were generics. Because styles were ROM only, and an arranger had few of them compared to now, the manufacturer really couldn’t afford to fill the precious ROM with styles only good for one song!

But older styles come with issues of their own, mostly older sounds and kits and effects etc.. This is where an easy to use style header editing system comes in very handy. You can often turn a pretty stale sounding old style into something that matches the best of your current generation arranger simply by substituting better sounds and drum kits and utilizing the better modern effects. Then most style editing systems nowadays allow you to import tracks from other styles, which might allow you to substitute an older less dynamic track with say a better acoustic guitar strum pattern, etc.. Or import a nice percussion track to spice up a simpler style.

But pay attention to the balance and cohesiveness of the sounds you switch to, it’s pretty amazing how you can tweak those older styles to come pretty close to the sounds of the latest ROM styles.

If you are looking to play much yourself, those older styles honestly work better than most of today’s styles. Yes, they sound great, but it’s not YOU that’s playing much, it’s the machine. And where’s the fun in that?! 😎🎹
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An arranger is just a tool. What matters is what you build with it..!