https://www.apkmirror.com/apk/facebook-2/work/work-275-0-0-34-127-release/workplace-from-facebook-275-0-0-34-127-5-android-apk-download/
Just downloaded the Workplace from Meta 275.0.0.34.127 (arm-v7a) (120-160dpi) (Android 4.1+) APK from @APKMirror