I know if someone, this is not a case of bitcoin, has a series of different multi wallets created using Trust Wallet, and they are all logged in on one mobile phone, he has almost all the wallet phrases saved somewhere, but the last wallet that he created was not backed up, and he saw no reason to do that.

Recently the phone developed a fault, and the phone fingerprint is no longer reading the password to the app that has been forgotten up till now. The phone is still kept somewhere until any day he will be able to remember the password, as that particular wallet appears to be holding coins he last bought.