How to Safetly shutdown my WD Cloud 4TB?

Known issue for the newer gen 2 My Clouds running v2.x firmware. There are several prior threads discussing this issue and one or two workarounds (possibly using SSH).

https://community.wd.com/t/safe-shutdown/147307

https://community.wd.com/t/how-i-turn-off/159860

https://community.wd.com/t/shutdown-mycloud-from-mobile/157418

https://community.wd.com/t/how-to-safely-shutdown-mycloud/155265