Bip39 invalid mnemonic https://www.demilked.com/author/gobnettlmz/ Though it works by using BIP32 approach it is possible to however import BIP39 seeds into Electrum wallet. Also apart from BIp32 There exists BIP44 version which some wallet use for the era of seeds. Exactly how much stability does a passphrase add? A BIP39 passphrase https://getsocialpr.com/story22493987/bip39-vs-electrum-top-latest-five-bip39-word-list-pdf-urban-news-https-linktr-ee-bip39