The answer
A transferable withdrawal-claim NFT may be tradeable on secondary markets, but pricing, buyer liquidity and contract permissions vary. Selling the NFT can transfer the right to collect the ETH.
What to do next
Check the exact NFT contract and market before signing a sale or approval.
Lido — Liquid staking protocol
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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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