Using Memu rooted patched
game logged in normally via google, facebook gives embeded error shit
new game, finished all tutorials, can now enter game menus
exit game
moded overwrite install over unmoded game
run game
logss out google
login via google gives error
login using fb gives embeded error shit (memu default browser gives this error, install chrome and disable the default browser)
so use install unmoded again
login google and link login fb (yes both)
now do same mod installation
use fb as main login and google is linked as well
now you can play using both accounts
can always unlink fb account via inside fb settings, easy
but not google, even deleting progress in google play games doesn't unlink the game on the used gmail