Who has to leave the house in a separation?

Who has to leave the house in a separation?
If the house is jointly owned by a married couple, both spouses have equal rights to occupy the home.
If only one spouse owns the home, the other spouse will have matrimonial home rights to reside there, even if they are not the legal owner.
If there are incidents of domestic abuse, it may be possible to restrict a spouse’s right to occupy the home through a court injunction.
In today’s current economic climate, many couples agree to share the same home but live separately under the same roof and have minimal communication.