[QA] [Mainnet] Gas estimate value on Bridge screen differs significantly from gas estimate on Redeem screen

[tsadovska]

Describe the current behavior in detail

Checked on https://deploy-preview-1795--wormhole-connect-mainnet.netlify.app/ [Mainnet] with macOS and Google Chrome.

Steps:

1. Prepare to send 0.0001 WETH (Ethereum) from Solana (Phantom) to Ethereum (MetaMask)
2. Check "Destination chain gas estimate" in Preview section
3. Click "Approve and proceed with transaction"
4. When Step 1 is completed check gas estimate on destination chain

Bridge screen:

Redeem screen:

What is the expected/desired behavior

Gas estimate on Bridge screen is similar to gas estimate in Redeem screen.

[tsadovska]

Issue is reproducible on https://wormhole-connect-mainnet.netlify.app/ [Mainnet] and https://portalbridge.com/ [Mainnet].

[tsadovska]

Reproducible from https://preview.portalbridge.com/b05f4e9322/ [Mainnet] with Manual Bridge route.

[tsadovska]

Reproducible on https://preview.portalbridge.com/8228d00809/ [Mainnet] when sending 0.00001 PYTH from Solana (Phantom) to Aptos (Spika).

• "Source chain has estimate" value was 0.000015 SOL (~$0.00)
• Gas fee on Solana was 0.002477 SOL (~$0.46)
• Send from tx: Solana Explorer
• Send to tx: Aptos Explorer

[tsadovska]

Reproducible on https://preview.portalbridge.com/3064c36d95/ [Mainnet] when sending 0.001 WAVAX from Avalanche (MetaMask) to Blast (MetaMask).

• "Destination chain gas estimate" on Bridge screen is 0.0003 ETH (Blast) (~$0.87)
• "Gas fee" on Redeem screen is 0.000001 ETH (Blast) (~$0.00)
• Send from tx: Avascan
• Send to tx: Blastscan

https://github.com/wormhole-foundation/wormhole-connect/assets/10746654/5124c1a9-789c-463c-b348-7a6de5672e3b

[tsadovska]

Reproducible on https://preview.portalbridge.com/3064c36d95/ [Mainnet] when sending 0.00001 WBNB from X Layer to Ethereum (MetaMask). Link to Wormholescan.