fix: Fix userLevelFee to be medium instead of dappSuggested when gasPrice is suggested (#5773)

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This PR aims to fix `userLevelFee` to be settled to `medium` instead of
`dappSuggested` fallback when `gasPrice` is suggested.

## References

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## Checklist

- [X] I've updated the test suite for new or updated code as appropriate
- [X] I've updated documentation (JSDoc, Markdown, etc.) for new or
updated code as appropriate
- [X] I've communicated my changes to consumers by [updating changelogs
for packages I've
changed](https://github.com/MetaMask/core/tree/main/docs/contributing.md#updating-changelogs),
highlighting breaking changes as necessary
- [X] I've prepared draft pull requests for clients and consumer
packages to resolve any breaking changes

Author: OGPoyraz

packages/transaction-controller/CHANGELOG.md

@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Validate correct origin in EIP-7702 transaction ([#5771](https://github.com/MetaMask/core/pull/5771))
+- Set `userLevelFee` to `medium` instead of `dappSuggested` when gasPrice is suggested ([#5773](https://github.com/MetaMask/core/5773))
 
 ## [55.0.0]
 

packages/transaction-controller/src/utils/gas-fees.test.ts

@@ -254,6 +254,19 @@ describe('gas-fees', () => {
         );
       });
 
+      it('to medium if no request maxFeePerGas or maxPriorityFeePerGas but suggested gasPrice available', async () => {
+        delete updateGasFeeRequest.txMeta.txParams.maxFeePerGas;
+        delete updateGasFeeRequest.txMeta.txParams.maxPriorityFeePerGas;
+
+        mockGasFeeFlowMockResponse(FLOW_RESPONSE_GAS_PRICE_MOCK);
+
+        await updateGasFees(updateGasFeeRequest);
+
+        expect(updateGasFeeRequest.txMeta.userFeeLevel).toBe(
+          UserFeeLevel.MEDIUM,
+        );
+      });
+
       it('to suggested medium maxFeePerGas if request gas price and request maxPriorityFeePerGas', async () => {
         updateGasFeeRequest.txMeta.txParams.gasPrice = '0x456';
         updateGasFeeRequest.txMeta.txParams.maxPriorityFeePerGas = '0x789';

packages/transaction-controller/src/utils/gas-fees.ts

@@ -313,6 +313,14 @@ function getUserFeeLevel(request: GetGasFeeRequest): UserFeeLevel | undefined {
     return UserFeeLevel.MEDIUM;
   }
 
+  if (
+    !initialParams.maxFeePerGas &&
+    !initialParams.maxPriorityFeePerGas &&
+    suggestedGasFees.gasPrice
+  ) {
+    return UserFeeLevel.MEDIUM;
+  }
+
   if (txMeta.origin === ORIGIN_METAMASK) {
     return UserFeeLevel.MEDIUM;
   }