No, It does not let you use multiple android devices with a single account. I will be logged out from my android device if I log into whatsapp in waydroid :(
for me personally I like to be able to install software temporarily using nix-shell command it's awesome. the installed program will be gone once you leave the nix-shell. It's just awesome for me.
It doesn't matter how much DRM you put into the service. someone can just spin up a Virtual Machine and install chrome, windows in it and then record the stream from the host system.
Jamal Kudu