Scenes are important in the first chapter. There are major scenes and there are scenes that provide information and other things.
A major scene is one where there is conflict shown. The character may be in conflict with another character, the environment, society or themself. This scene gives some hints about what the reason for the story will show as it unfolds. A meeting between the hero and heroine in a romance. The murderer and the victim in a mystery. The coming storm like a hurricane or a blizzard. A coming election. A character with a choice to be made. All of these show some kind of conflict that will impact the story. This scene whets the reader's desire for action and can be useful in characterization.
Then there's the informational scene. Here the writer can show some aspect of a character to reveal their nature. This kind of scene can establish the setting. Also giving the reader information they can use as the story unfolds. This brings understanding to the reader and helps in belief that the fictional world is worth exploring.