Whatsapp backup and restore not working (Tested both local and google drive) - Bluestacks
Yes, I tested both local manual transfer and Google drive and found that the whatsapp data backedup from Bluestacks is not working for restore
But atleast I found that nox(used the version 3.0.3.0) app player Android emulator works fine. I tested the whatsapp backup and restore using Google drive and local manual transfer and both work fine
Additionally if one wants to know how to
Transfer files from nox Android emulator to MAC and vice versa,
Enable Root access in nox app player by selecting settings icon at top right corner of the nox app -&gt; Switch ON the root. Then there is a common share folder which is accessible from both MAC and also nox Android emulator,

In nox the common share folder is at:- Open the Amaze File Manager (Tools folder on nox app player Android emulator home screen -&gt; Amaze) and go to /root/mnt/shared 

In MAC the common share folder is at:- Go to /Users/Username/Library/Application Support/NoxAppPlayer/Nox_share

Now to transfer files from nox to MAC:-
From Phone(/Storage or /emulated/storage/0) folder if we want to copy something to /root folder(Accessible to both Phone and MAC) then we can only copy files (or zip files as well) and not folders so zip the whatsapp folder (using AstroFileExplorer+Winzip software because somehow winzip is not detected in Amaze File Manager) and copy the zip file from /Storage to /root/mnt/shared using Amaze File Manager

Then in MAC we will have the files already at the common share folder location

P.S:
The issue I have with nox Android emulator is that it does not detect the MAC touchpad scrolling. I need to click on screen using mouse cursor and then scroll the screen like a touch screen. https://www.reddit.com/r/noxappplayer/comments/g1qp7b/touchpad_on_macbook_pro_with_nox/
Also nox app player is not able to access the camera. So I cannot open web whatsapp for example because I need to scan a photo of the barcode using whatsapp app with a camera
https://www.reddit.com/r/noxappplayer/comments/bmv8pl/problem_cant_connect_to_camera/