Not sure what you mean by this, Have you been forced to update on the Microsoft Store to a new update?
Not sure if it's still relevant. I'll post in for the chance it'd help someone else.
You can install the app manually, without the store. You only need to paste some Powershell commands, and it works on Windows LTSC too.
A. Go to Adguard Downloader, and paste Microsoft Store's WhatsApp link.
B. Download all msixbundle/appx for *your* architecture (probably x64).
C. Open PowerShell as Admin, and enter:
Add-AppxPackage –Path "<path\to\msixbundle\or\appx>"
D. Repeat C for all the files you've downloaded.