Make sure that your phone has USB debugging enabled.
Connect your phone to your computer, and make sure that the OS identified the device with:
adb devices -lThen, print your device architecture:
adb shell getprop ro.product.cpu.abiFinally, install the corresponding APK with:
adb install app.apkYour may need to authorize the installation on your phone via a popup.
$ adb devices -l
List of devices attached
h610a3865d device product:tucana_eea model:Mi_9 device:tucana transport_id:1
$ adb shell getprop ro.product.cpu.abi
arm64-v8a
$ adb install app-arm64-v8a-release.apk
Performing Streamed Install
Success