Bip39 Passphrase. The passphrase is just not chosen within the predefined list of 2048 words – it can be any word or phrase you end up picking. What constitutes a "superior wallet" is one which has obvious, very easy to access documentation on supported BIP expectations, derivation paths, and Restoration https://bookmarkrange.com/story20582430/bip39-word-list-pdf-https-linktr-ee-bip39-top-guidelines-of-bip39-mnemonic