The fuller answer
Living in two homes can provide ongoing relationships and also create constant transitions, duplicate rules, forgotten belongings, travel, divided friendships, and the feeling of being a guest in both places.
Children may monitor what they say so one parent does not feel rejected, carry messages, or become evidence in adult conflict. They should not have to prove equal love or report on the other household.
Predictable schedules, duplicate essentials, neutral handoffs, privacy, and direct adult communication reduce the burden.