Valid bip39 seed phrase https://www.bitsdujour.com/profiles/wWbptt Though it works by using BIP32 approach it is possible to still import BIP39 seeds into Electrum wallet. Also apart from BIp32 There is certainly BIP44 Edition which some wallet use for the generation of seeds. BIP39 solves this by using human-readable seed phrases made https://bookmarkindexing.com/story19899285/bip39-seed-to-private-key-bip39-generator-secrets-https-cutt-ly-uryc5rw7