https://www.apkmirror.com/apk/facebook-2/work/work-269-0-0-54-127-release/workplace-from-facebook-269-0-0-54-127-3-android-apk-download/
Just downloaded the Workplace from Meta 269.0.0.54.127 (arm64-v8a) (560-640dpi) (Android 4.1+) APK from @APKMirror