At present, I don't think Polygon's VaultBridge may be a good solution. This design is similar to Blast throwing cross chain ETH into Lido before. Now it is equivalent to extending this mechanism to Aggrayer L2, which improves capital efficiency. However, it is equivalent to bringing the risk of the application layer to the lower level of the chain. If we can attract a large number of users, it is still cost-effective. However, as a warning, this improvement may be limited, and the risk has already penetrated