As far as I know, Homelander doesn't drink milk. The focus in the comics is more on his superpowers and villainous actions rather than his beverage choices.
People who laughed coldly and laughed warmly were typical people who were cold on the outside but warm on the inside. They would usually sneer when faced with other people's opinions to express their disapproval and disdain. The sneer was not from the bottom of his heart. Instead, it was filled with contempt, ridicule, and anger. This kind of person might usually be expressionless and would only let go in front of familiar people. It was difficult for them to trust others, so they chose not to interact with others. People who sneered might have a negative attitude towards things and not be good for life. However, a sneer could also represent the helplessness and loneliness in a person's heart. They did not want others to discover their true feelings. In general, people who laughed coldly and laughed warmly were cold on the outside but warm on the inside, and difficult to trust others.
People who sneered and laughed were usually people who looked cold on the outside but were passionate on the inside. A sneer was a smile that carried contempt and sarcasm. It often expressed disapproval and disdain for other people's views. Rehaha, on the other hand, was a passionate laughter. People who sneered and laughed might express their views with a negative attitude, but they might crave for concern and understanding in their hearts. Such people might sometimes hide their true feelings and feel lonely, but they were unwilling to be discovered. Their moods were usually shown on their faces, and it might be easier for them to get along with others. In general, people who laughed coldly and laughed warmly were cold on the outside but warm on the inside, with a certain sense of inferiority and loneliness.
Definitely. The comic version of Homelander is portrayed as having greater strength and capabilities. This is evident in his confrontations and the scale of his power displays throughout the comic series.