Quickslot:
Movement is stopped when quickslot menu is opened until it is closed, which was not that case prior. Giving mouse and keyboard players a clear advantage since they can move while using quickslot buttons. (Video example included)

Inventory:
Other binds like the movement stick, and d-pad still carry out character functions while inventory is open, such as walking or using VoIP. (I do not have a video example of this yet)