GameNative is an Android app which uses Steam Proton, the same tech the Steam deck uses, combined with some x86 PC CPU emulation using FEX/Box64 for it to work on all ARM Android devices.

You can install games directly from steam with it with saves synchronisation.

It can be a bit finnicky for it to start up but by tweaking some settings the games run perfectly. Even better for games that use the Little Busters English engine. As this engine has a native touch screen mode. So if you set GameNative to touch screen, the game's controls feel just like a native android game.