Not every "Dolphin 5.0 APK" will work on 32-bit devices. You need the build.
To run modern versions of Dolphin on Android, your device must meet the following official minimum specifications: Operating System : 64-bit Android 5.0 (Lollipop) or higher. : 64-bit AArch64 processor. : GPU supporting OpenGL ES 3.0 or higher. Options for 32-bit Devices Not every "Dolphin 5
If you do not own any GameCube or Wii games, consider exploring free, open-source homebrew games like Tunnel Rush or Cave Story (ported to GameCube) to test your 32-bit hot install. consider exploring free