https://www.apkmirror.com/apk/microsoft-corporation/field-service-mobile-2/field-service-mobile-2-13-2-216-release/field-service-mobile-13-2-216-android-apk-download/
Just downloaded the Field Service Mobile 13.2.216 (arm64-v8a + arm-v7a) (Android 7.0+) APK from @APKMirror