I have heard the opposite. You don't need the original device you used for Ledger Recover and seed sharding. Since the shards are connected to your identity (the ID and selfie you provide), the hardware wallet device is of secondary importance here.
They never answered this:
https://www.reddit.com/r/ledgerwallet/comments/13lo5rv/decrypt_key_and_ledger_recover/To me, this looks very suspicious because you need a communication channel between hardware wallets to transfer a decryption key, which basically means you have to rely on a third-party provider to store and send it to you after a successful KYC procedure. I don't quite understand what prevents this provider from colluding with companies holding parts of your seed, or how this provider can be a safer solution than a hardware wallet itself. This new recovery feature does nothing but weakens your security setup since the amount of information to store safely increases, and the number of parties knowing that information doubles and triples. No matter if they open-source this feature eventually, this is just terrible for a hardware wallet manufacturer to offer it.