The answer
Yes. EIP-7702 places a delegation designation on the account; closing the interface does not itself remove that on-chain state.
What to do next
Check the account's code on the relevant chain and follow an authoritative revocation procedure if delegation was unintended.
Etherscan — Ethereum account explorer
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Ledger hardware wallet
Relevant hardware-backed signing for supported assets; it does not eliminate gas fees, contract vulnerabilities or approval risks.
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