Do gta online missions have the same objectives as story missions?

Grand Theft Auto Online is described as an online multiplayer action‑adventure game that is part of the Grand Theft Auto V ecosystem. It allows up to 30 players to explore the open world of San Andreas and participate in cooperative or competitive game modes. The source does not mention the specific objectives of missions in GTA Online, nor does it compare them to the story missions found in the single‑player campaign of Grand Theft Auto V. Therefore, based on the evidence available, it is not possible to determine whether the objectives are the same or different.