Illustrative example
Two spouses have both filed and neither will leave the house. The children do their homework between them, and one parent has started sleeping in the basement to avoid the other.
The section gives the court power to make such direction concerning the possession of property as justice requires, having regard to the circumstances of the case and of the parties, and to do it by order before final judgment rather than at the end. What it weighs is the household as it now is - the fact that decides it is the effect of the present arrangement on the people living in it, not whose name is on the deed.
One of them takes a short-term rental nearby for six months, paid from the joint account, and both record in writing that the arrangement decides nothing about who ends up owning the house.