Bip39 Wallet. Though there are BIP39 wordlists in languages in addition to English, it is actually strongly not advised to implement non-English words for wallet backups. It might make restoring the wallet hard or not possible. By using a passphrase, you incorporate an additional layer of safety towards your wallet, https://bookmarkshome.com/story4235351/bip39-passphrase-https-linktr-ee-bip39-not-known-factual-statements-about-ian-coleman-bip39