Bip39 trezor https://www.empowher.com/user/4550298 Regardless that it uses BIP32 approach you could still import BIP39 seeds into Electrum wallet. Also other than BIp32 There's BIP44 Model which some wallet use with the technology of seeds. BIP39 is like the ability to “go through” and have an understanding of the seed phrase. https://wavesocialmedia.com/story5893235/generate-bip39-passphrase-5-simple-statements-about-bip39-converter-explained-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw