I have been finding a way to get video/audio call working on Linux for some time. however whatsapp doesn’t have an “official” client for Linux so I am kinda stuck in the web version of whatsapp but the web version doesn’t have calling functionality which is bummer since all of my friends uses whatsapp and I want to be able to communicate with them from my Linux machine.
I have tried installing the client using wine but it didn’t work either. I know most of people hate whatsapp for obvious reasons but I have to use it to connect to my friend and family :(
https://www.android-x86.org/releases/releasenote-cm-x86-14-1-r5.html
I have made voice calls with this in VirtualBox from a Linux host. Lacking support for VBoxGuestAdditions, it is not a great general solution, as you cannot easily bridge the gap between host/guest, however.
I have not tested QEMU.