Bip39 Passphrase Empty For None ) Despite the fact that it makes use of BIP32 system you can even now import BIP39 seeds into Electrum wallet. Also apart from BIp32 There exists BIP44 Edition which some wallet use for your generation of seeds. So It really is up to you https://getsocialsource.com/story3918651/enter-a-bip39-passphrase-bip39-an-overview