Is Mahayana Buddhism a form of idealism?

Do Mahayana Buddhists believe that the whole world and all objects are created by the mind? For example, my friend and I see a train. Do I and my friend see the same train? Tell me if it is correct to say that Mahayana Buddhists believe that the people they see in front of them have consciousness and sensations (individual mindstreams) and exist independently of the imagination of Buddhists, but all of us and our whole world are dependent on all people and their minds, that is, we co-create our world together? And what about the Yogacara school, which is considered idealism?