2 uplay account on 1 PC (Assassin's Creed: Odyssey)

Generally there is 2 account, one is mine which I play their games, the other friend who bought odiseya the incentive to do that would have been 2 clients and they were run from different windows user accounts without logging off of steam accounts, but when I try to do the same with uplay, the game just won't start how to solve it?
VIDOS Pro 2 controls has exceeded Akka did exactly the same as here only instead of a stim inserted data uplay