Step 1
Get the direct URL of the app from the Microsoft Store website.
As of writing this, it’s https://apps.microsoft.com/store/detail/whatsapp/9NKSQGP7F2NH?hl=en-us&gl=us
(Unsure if it will be changed in the future)
Step 2
Paste that URL into https://store.rg-adguard.net/
Step 3
Download the latest (by date) WhatsAppDesktop file that ends with .msixbundle (The size should be around 90MB)
Step 4
Run PowerShell with admin (without admin should work too, but to be safe just run it with admin)
Step 5
Paste the following line with the relevant modifications based on your download location file path.
Add-AppxPackage -Path “C:\Users\*USERNAME*\Downloads\*FILENAME*.Msixbundle”
So, for example
Add-AppxPackage -Path “C:\Users\u/OxySempra\Downloads\5319275A.WhatsAppDesktop_2.2314.6.0_neutral_~_cv1g1gvanyjgm.Msixbundle”
Let it do it’s thing after that, and the application will be installed successfully.