Are there exclusive missions in gta online not available in single player gta ga?

Grand Theft Auto Online, launched in 2013 as a separate multiplayer component of GTA V, features a substantial amount of content that does not exist in the single-player campaign. These include exclusive missions such as the 'Doomproof' heist setup missions, 'Uplink' and 'Attitude' data breach missions, and various vehicle-based challenges like 'Trials' and 'Stunt Races' that are only accessible in the online mode. Additionally, Online offers unique activities like 'Diamond Casino Heist', 'Agency Contracts', 'Client Jobs', and 'Contact Missions' that require other players and are unavailable in single-player. The 'GTA Online' mode also includes exclusive weapons, vehicles, and customization options that cannot be accessed in the story mode. Rockstar Games has regularly updated Online with new content through DLCs, further expanding the gap between single-player and multiplayer experiences.