Possible gas optimization

The getBurnRequest function returns a burn-request amount associated with a given account. If the request does not exist, it returns zero. However, the internal behavior of tryGet is identical, making the last conditional assignment unnecessary. Here is a possible optimization:

function getBurnRequest(
    address account
) external view returns (uint256 amount) {
-   (bool exists, uint256 value) = Storage.layout().burnRequests.tryGet(
+   (, amount) = Storage.layout().burnRequests.tryGet(
        account
    );
-   amount = exists ? value : 0;
}

Since this is a view function, it does not directly save gas. However, it may if the function is called in another transaction.