If a will is found, the bank must send it to the court. You also could keep the will in a fireproof safe at your home. You run the risk, though, that the safe could be stolen. Thieves don't want to read your will. But if they take the safe, the will goes with it.
Some people keep their original wills in the freezer.
If your house burns down, your freezer may be the only thing left standing. And thieves rarely raid the freezer when robbing a house. Usually, the vault is merely a locked closet or file cabinet that they call a vault. With rare exception, only the biggest law firms spend the money to properly protect the original documents left with them for safekeeping. Texas law also allows you to deposit your will with the county court where it will be held until your death.