L2Beat research lead Donnoh stated that Robinhood Chain employs a highly permissioned canonical bridge architecture, and its fraud proof system does not appear to be fully open, questioning why it still retains a 7-day withdrawal challenge period. He said he is increasingly skeptical that some L2s view long withdrawal periods as a feature rather than a purely security necessity. Robinhood Chain's official documentation still states that its withdrawal process requires waiting for the standard 7-day challenge period of Arbitrum.