In my state at least the courts will probate a copy of a will if the original can’t be found! So you can also give copies to the relevant people.

Normally if you have a lawyer do the paperwork they keep the original in their secure storage. Then someone just has to know who your attorney is. My dad *was* an attorney, pulled his papers out of his office after he retired for Reasons, and didn’t tell us who the new guy was.