https://www.apkmirror.com/apk/facebook-2/work/work-276-1-0-47-127-release/workplace-from-facebook-276-1-0-47-127-5-android-apk-download/
Just downloaded the Workplace from Meta 276.1.0.47.127 (arm64-v8a) (360-480dpi) (Android 8.0+) APK from @APKMirror