I'm not sure if your question is rhetoric, but somewhere I've read that some map providers show it depending on what country the user (website visitor) is in - so users in country A see the disputed territory as belonging to country A, users in country B see it as belonging to their country, and everyone else sees this territory as "disputed between A and B".

Governments of both A and B might have opposite demands from the same map-making company and threat it with legal consequences.

Also, in recent news: https://yandex.com/maps/ decided not to show country borders at all: https://techcrunch.com/2022/06/09/yandex-maps-no-borders/