Gas transactions can link wallets because native-asset funding and fee-paying accounts are public parts of account-based blockchain activity.
Source gas reveals the actor address
On EVM networks, the transaction sender pays gas. On Solana, a fee payer is included in the signed transaction. Those roles remain visible even when token delivery follows a different path.
Destination gas creates another transfer
A wallet that receives tokens may need ETH, SOL, TRX, or another native asset before it can move them. Funding that balance from a known wallet creates a public edge.
Fees are not privacy controls
Paying a higher priority fee can affect inclusion, not transaction visibility. Unusual fee patterns can become another behavioral feature.
Plan the complete route
Check source gas and likely destination gas before depositing, and include their public relationships in any wallet-link assessment.
How to read the evidence
Wallet privacy is cumulative. The route, browser session, wallet connection, gas source, receiving address, exchange account, public profile, and later transfers can each add a different relationship. Review those layers separately and avoid treating one fresh address as a complete solution. The most useful objective is minimizing unnecessary links while keeping recovery, address verification, and transaction safety intact.