Is arbitrum a DAO?

I'm curious to know, is Arbitrum considered a DAO? Could you elaborate on this point for me? I've heard conflicting views on whether it falls under the decentralized autonomous organization umbrella. Some say it exhibits characteristics similar to a DAO, while others argue it doesn't quite fit the definition. Could you please clarify this for me? I'm trying to get a better understanding of how Arbitrum operates and whether it aligns with the principles of decentralization and autonomy that DAOs typically embrace.