EnvioEndpoints
"All Chains" means most of the chains supported by Sablier, e.g., Ethereum Mainnet, Optimism, Polygon. The full list can be found here.
Unified Endpoint
As you can see, Envio offers a single API endpoint that aggregates data across all chains. This approach differs from other indexers like The Graph, which require separate subgraphs for each chain where Sablier is deployed.