Generate bip39 passphrase https://www.bitsdujour.com/profiles/wWbptt Regardless that it uses BIP32 strategy you'll be able to nevertheless import BIP39 seeds into Electrum wallet. Also besides BIp32 There may be BIP44 Model which some wallet use for the technology of seeds. Just how much stability does a passphrase increase? A BIP39 passphrase considerably https://socialdummies.com/story4784262/bip39-trust-wallet-the-single-best-strategy-to-use-for-bip39-recovery-tool-https-linktr-ee-bip39