Hi there, I would like to ask if there is any NFT ... @curvefi

No, there is no NFT type of token involved in the swap route from cvx to cvxcrv. The swap route involves three ERC20 tokens, cvxeth, crveth and cvxcrv. Your Ledger Nano S does not support NFT tokens, so it is not possible to approve the swap. However, you can still use the swap route to exchange your cvx for cvxcrv, you just need to use another wallet that does support NFT tokens.

nope