To ALL. The mode is working fine. I've just tested it. What I did was after installing the mod, delete cache. Don't delete data else you'll have to redownload everything and potentially wiped your account along the way. Since you can't link google with modded apps.
I used signed apk. Got Xposed on my rooted phone, so no issue for me to replace apps with different signatures, i can install on top of existing legit one.