Bip39 validate mnemonic https://www.demilked.com/author/gobnettlmz/ Regardless that it uses BIP32 system it is possible to even now import BIP39 seeds into Electrum wallet. Also apart from BIp32 There is certainly BIP44 Variation which some wallet use with the era of seeds. This extra complexity increases the chance of misplacing the passphrase, https://devinzryy552.trexgame.net/comprehending-bip32-vs-bip39-which-one-should-you-make-use-of