Aave is currently one of the few protocols using legacy fee adapters, which only fetch data from the previous day. This means that websites can only show historical data from the cached data.
The Aave adapter should be upgraded to a complete adapter that allows querying fee data from any day. A subgraph would be ideal for this.
Additionally, the Aave data should be split into the various Aave deployments (V1, V2, Polygon), and any future deployments (Optimism, Aave Arc).