If you want the experience of RetroBat (scraped box art, unified launcher, per-system configs) without the Windows baggage, these are your options.
However, you can achieve an identical—and often better—experience using Android-native frontends that share the same DNA. The Best Android Alternatives to Retrobat retrobat on android
How to use apps like "Launch on Boot" to make Daijishō or ES-DE open immediately when you turn on your handheld or tablet. If you want the experience of RetroBat (scraped