It seems WhatsApp is operative to move a new app for Windows 10 PC version. The Beta app for WhatsApp for desktop has seemed in a Windows store.
Currently one can download a desktop app from WhatsApp site that is zero though a WhatsApp web wrapper. This new app might move some-more functionality to a desktop app.
As one can design from this private Beta inventory it is not accessible to download for everyone. Only if we are a private Beta tester we would be means to download and implement it.
As per a sum supposing with a inventory a Beta app is usually concordant with x64 architecture.