Bip39 Vs Slip39. First of all you ought to store it SEPARATELY out of your seed. Acquiring your seed and also your passphrase in a similar location defeats the goal of using a passphrase in the first place. This functions mainly because BIP39 is supported by so many wallet companies. https://bookmarkassist.com/story19533794/bip39-https-linktr-ee-bip39-the-fact-about-bip39-words-that-no-one-is-suggesting