No. The launcher handles DRM, Social Club authentication, and online connectivity. Without it, the game will not start.
Since the launcher is installed as part of the game, you do not manually "install" it. However, here is how to ensure it runs correctly after the game is installed. gtavlauncherexe download install
(Manage > Verify) to repair broken or missing launcher files Path Not Found : If the game won't launch, you may need to update the InstallFolder registry key at No. The launcher handles DRM
This is often a DLL conflict or Windows compatibility issue. Social Club authentication